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Finding the Fourth Proportional to 147,295.08, 203,202.54 and 99,531

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Solution

The fourth proportional to 147,295.08, 203,202.54 and 99,531 is: 137,309.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,295.08 : 203,202.54 = 99,531 : x
  2. Step 2: Convert to fraction form
    147,295.08/203,202.54 = 99,531/x
  3. Step 3: Cross multiply
    147,295.08x = 203,202.54 × 99,531
  4. Step 4: Simplify right side
    147,295.08x = 20,224,952,008.74
  5. Step 5: Solve for x
    x = 20,224,952,008.74/147,295.08
  6. Step 6: Final answer
    x = 137,309.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.