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Finding the Fourth Proportional to 172,646.28, 238,318.76 and 134,932.68

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Solution

The fourth proportional to 172,646.28, 238,318.76 and 134,932.68 is: 186,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,646.28 : 238,318.76 = 134,932.68 : x
  2. Step 2: Convert to fraction form
    172,646.28/238,318.76 = 134,932.68/x
  3. Step 3: Cross multiply
    172,646.28x = 238,318.76 × 134,932.68
  4. Step 4: Simplify right side
    172,646.28x = 32,156,988,981.08
  5. Step 5: Solve for x
    x = 32,156,988,981.08/172,646.28
  6. Step 6: Final answer
    x = 186,259.38

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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.