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Finding the Fourth Proportional to 359,430.98, 539,054.16 and 106,651.68

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Solution

The fourth proportional to 359,430.98, 539,054.16 and 106,651.68 is: 159,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,430.98 : 539,054.16 = 106,651.68 : x
  2. Step 2: Convert to fraction form
    359,430.98/539,054.16 = 106,651.68/x
  3. Step 3: Cross multiply
    359,430.98x = 539,054.16 × 106,651.68
  4. Step 4: Simplify right side
    359,430.98x = 57,491,031,774.99
  5. Step 5: Solve for x
    x = 57,491,031,774.99/359,430.98
  6. Step 6: Final answer
    x = 159,950.13

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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.