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Finding the Fourth Proportional to 359,569.80, 539,354.70 and 110,219.40

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Solution

The fourth proportional to 359,569.80, 539,354.70 and 110,219.40 is: 165,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,569.80 : 539,354.70 = 110,219.40 : x
  2. Step 2: Convert to fraction form
    359,569.80/539,354.70 = 110,219.40/x
  3. Step 3: Cross multiply
    359,569.80x = 539,354.70 × 110,219.40
  4. Step 4: Simplify right side
    359,569.80x = 59,447,351,421.18
  5. Step 5: Solve for x
    x = 59,447,351,421.18/359,569.80
  6. Step 6: Final answer
    x = 165,329.10

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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.