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Finding the Fourth Proportional to 359,418.57, 539,035.59 and 106,639.26

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Solution

The fourth proportional to 359,418.57, 539,035.59 and 106,639.26 is: 159,931.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,418.57 : 539,035.59 = 106,639.26 : x
  2. Step 2: Convert to fraction form
    359,418.57/539,035.59 = 106,639.26/x
  3. Step 3: Cross multiply
    359,418.57x = 539,035.59 × 106,639.26
  4. Step 4: Simplify right side
    359,418.57x = 57,482,356,431.26
  5. Step 5: Solve for x
    x = 57,482,356,431.26/359,418.57
  6. Step 6: Final answer
    x = 159,931.52

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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.