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Finding the Fourth Proportional to 152,065,605.20, 213,429,324.40 and 152,065,605.20

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Solution

The fourth proportional to 152,065,605.20, 213,429,324.40 and 152,065,605.20 is: 213,429,324.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,065,605.20 : 213,429,324.40 = 152,065,605.20 : x
  2. Step 2: Convert to fraction form
    152,065,605.20/213,429,324.40 = 152,065,605.20/x
  3. Step 3: Cross multiply
    152,065,605.20x = 213,429,324.40 × 152,065,605.20
  4. Step 4: Simplify right side
    152,065,605.20x = 32,455,259,382,313,124
  5. Step 5: Solve for x
    x = 32,455,259,382,313,124/152,065,605.20
  6. Step 6: Final answer
    x = 213,429,324.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.