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Finding the Fourth Proportional to 359,685.84, 539,529.12 and 93,424.08

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Solution

The fourth proportional to 359,685.84, 539,529.12 and 93,424.08 is: 140,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,685.84 : 539,529.12 = 93,424.08 : x
  2. Step 2: Convert to fraction form
    359,685.84/539,529.12 = 93,424.08/x
  3. Step 3: Cross multiply
    359,685.84x = 539,529.12 × 93,424.08
  4. Step 4: Simplify right side
    359,685.84x = 50,405,011,669.21
  5. Step 5: Solve for x
    x = 50,405,011,669.21/359,685.84
  6. Step 6: Final answer
    x = 140,136.21

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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.