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Finding the Fourth Proportional to 152,221.35, 213,576.45 and 152,221.35

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Solution

The fourth proportional to 152,221.35, 213,576.45 and 152,221.35 is: 213,576.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,221.35 : 213,576.45 = 152,221.35 : x
  2. Step 2: Convert to fraction form
    152,221.35/213,576.45 = 152,221.35/x
  3. Step 3: Cross multiply
    152,221.35x = 213,576.45 × 152,221.35
  4. Step 4: Simplify right side
    152,221.35x = 32,510,895,547.21
  5. Step 5: Solve for x
    x = 32,510,895,547.21/152,221.35
  6. Step 6: Final answer
    x = 213,576.45

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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.