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Finding the Fourth Proportional to 147,851.30, 207,516.70 and 147,851.30

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Solution

The fourth proportional to 147,851.30, 207,516.70 and 147,851.30 is: 207,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,851.30 : 207,516.70 = 147,851.30 : x
  2. Step 2: Convert to fraction form
    147,851.30/207,516.70 = 147,851.30/x
  3. Step 3: Cross multiply
    147,851.30x = 207,516.70 × 147,851.30
  4. Step 4: Simplify right side
    147,851.30x = 30,681,613,866.71
  5. Step 5: Solve for x
    x = 30,681,613,866.71/147,851.30
  6. Step 6: Final answer
    x = 207,516.70

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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.