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Finding the Fourth Proportional to 188,362.38, 260,008.32 and 124,720.68

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Solution

The fourth proportional to 188,362.38, 260,008.32 and 124,720.68 is: 172,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,362.38 : 260,008.32 = 124,720.68 : x
  2. Step 2: Convert to fraction form
    188,362.38/260,008.32 = 124,720.68/x
  3. Step 3: Cross multiply
    188,362.38x = 260,008.32 × 124,720.68
  4. Step 4: Simplify right side
    188,362.38x = 32,428,414,476.06
  5. Step 5: Solve for x
    x = 32,428,414,476.06/188,362.38
  6. Step 6: Final answer
    x = 172,159.72

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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.