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Finding the Fourth Proportional to 359,428.60, 539,050.60 and 106,649.30

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Solution

The fourth proportional to 359,428.60, 539,050.60 and 106,649.30 is: 159,946.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,428.60 : 539,050.60 = 106,649.30 : x
  2. Step 2: Convert to fraction form
    359,428.60/539,050.60 = 106,649.30/x
  3. Step 3: Cross multiply
    359,428.60x = 539,050.60 × 106,649.30
  4. Step 4: Simplify right side
    359,428.60x = 57,489,369,154.58
  5. Step 5: Solve for x
    x = 57,489,369,154.58/359,428.60
  6. Step 6: Final answer
    x = 159,946.56

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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.