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Finding the Fourth Proportional to 147,007.80, 206,087.40 and 147,007.80

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Solution

The fourth proportional to 147,007.80, 206,087.40 and 147,007.80 is: 206,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,007.80 : 206,087.40 = 147,007.80 : x
  2. Step 2: Convert to fraction form
    147,007.80/206,087.40 = 147,007.80/x
  3. Step 3: Cross multiply
    147,007.80x = 206,087.40 × 147,007.80
  4. Step 4: Simplify right side
    147,007.80x = 30,296,455,281.72
  5. Step 5: Solve for x
    x = 30,296,455,281.72/147,007.80
  6. Step 6: Final answer
    x = 206,087.40

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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.