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Finding the Fourth Proportional to 359,840.12, 539,760.11 and 107,124.30

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Solution

The fourth proportional to 359,840.12, 539,760.11 and 107,124.30 is: 160,686.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,840.12 : 539,760.11 = 107,124.30 : x
  2. Step 2: Convert to fraction form
    359,840.12/539,760.11 = 107,124.30/x
  3. Step 3: Cross multiply
    359,840.12x = 539,760.11 × 107,124.30
  4. Step 4: Simplify right side
    359,840.12x = 57,821,423,416.05
  5. Step 5: Solve for x
    x = 57,821,423,416.05/359,840.12
  6. Step 6: Final answer
    x = 160,686.43

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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.