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Finding the Fourth Proportional to 359,388.84, 539,134.86 and 119,421.12

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Solution

The fourth proportional to 359,388.84, 539,134.86 and 119,421.12 is: 179,148.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,388.84 : 539,134.86 = 119,421.12 : x
  2. Step 2: Convert to fraction form
    359,388.84/539,134.86 = 119,421.12/x
  3. Step 3: Cross multiply
    359,388.84x = 539,134.86 × 119,421.12
  4. Step 4: Simplify right side
    359,388.84x = 64,384,088,812.24
  5. Step 5: Solve for x
    x = 64,384,088,812.24/359,388.84
  6. Step 6: Final answer
    x = 179,148.83

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1.5x scale

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.