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Finding the Fourth Proportional to 359,905.12, 539,802 and 123,193.44

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Solution

The fourth proportional to 359,905.12, 539,802 and 123,193.44 is: 184,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,905.12 : 539,802 = 123,193.44 : x
  2. Step 2: Convert to fraction form
    359,905.12/539,802 = 123,193.44/x
  3. Step 3: Cross multiply
    359,905.12x = 539,802 × 123,193.44
  4. Step 4: Simplify right side
    359,905.12x = 66,500,065,298.88
  5. Step 5: Solve for x
    x = 66,500,065,298.88/359,905.12
  6. Step 6: Final answer
    x = 184,771.10

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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.