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Finding the Fourth Proportional to 359,418.83, 539,035.97 and 106,639.52

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Solution

The fourth proportional to 359,418.83, 539,035.97 and 106,639.52 is: 159,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,418.83 : 539,035.97 = 106,639.52 : x
  2. Step 2: Convert to fraction form
    359,418.83/539,035.97 = 106,639.52/x
  3. Step 3: Cross multiply
    359,418.83x = 539,035.97 × 106,639.52
  4. Step 4: Simplify right side
    359,418.83x = 57,482,533,875.16
  5. Step 5: Solve for x
    x = 57,482,533,875.16/359,418.83
  6. Step 6: Final answer
    x = 159,931.90

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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.