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Finding the Fourth Proportional to 335,115.80, 502,500.90 and 124,645.40

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Solution

The fourth proportional to 335,115.80, 502,500.90 and 124,645.40 is: 186,903.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,115.80 : 502,500.90 = 124,645.40 : x
  2. Step 2: Convert to fraction form
    335,115.80/502,500.90 = 124,645.40/x
  3. Step 3: Cross multiply
    335,115.80x = 502,500.90 × 124,645.40
  4. Step 4: Simplify right side
    335,115.80x = 62,634,425,680.86
  5. Step 5: Solve for x
    x = 62,634,425,680.86/335,115.80
  6. Step 6: Final answer
    x = 186,903.83

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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.