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Finding the Fourth Proportional to 359,569.60, 539,548.80 and 159,920.80

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Solution

The fourth proportional to 359,569.60, 539,548.80 and 159,920.80 is: 239,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,569.60 : 539,548.80 = 159,920.80 : x
  2. Step 2: Convert to fraction form
    359,569.60/539,548.80 = 159,920.80/x
  3. Step 3: Cross multiply
    359,569.60x = 539,548.80 × 159,920.80
  4. Step 4: Simplify right side
    359,569.60x = 86,285,075,735.04
  5. Step 5: Solve for x
    x = 86,285,075,735.04/359,569.60
  6. Step 6: Final answer
    x = 239,967.66

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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.