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Finding the Fourth Proportional to 359,037.12, 538,569.34 and 134,373.90

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Solution

The fourth proportional to 359,037.12, 538,569.34 and 134,373.90 is: 201,565.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,037.12 : 538,569.34 = 134,373.90 : x
  2. Step 2: Convert to fraction form
    359,037.12/538,569.34 = 134,373.90/x
  3. Step 3: Cross multiply
    359,037.12x = 538,569.34 × 134,373.90
  4. Step 4: Simplify right side
    359,037.12x = 72,369,660,111.35
  5. Step 5: Solve for x
    x = 72,369,660,111.35/359,037.12
  6. Step 6: Final answer
    x = 201,565.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.