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Finding the Fourth Proportional to 499,990.86, 750,060.15 and 144,958.75

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Solution

The fourth proportional to 499,990.86, 750,060.15 and 144,958.75 is: 217,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,990.86 : 750,060.15 = 144,958.75 : x
  2. Step 2: Convert to fraction form
    499,990.86/750,060.15 = 144,958.75/x
  3. Step 3: Cross multiply
    499,990.86x = 750,060.15 × 144,958.75
  4. Step 4: Simplify right side
    499,990.86x = 108,727,779,350.07
  5. Step 5: Solve for x
    x = 108,727,779,350.07/499,990.86
  6. Step 6: Final answer
    x = 217,459.53

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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.