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Finding the Fourth Proportional to 243,509.40, 365,091.30 and 93,691.80

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Solution

The fourth proportional to 243,509.40, 365,091.30 and 93,691.80 is: 140,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,509.40 : 365,091.30 = 93,691.80 : x
  2. Step 2: Convert to fraction form
    243,509.40/365,091.30 = 93,691.80/x
  3. Step 3: Cross multiply
    243,509.40x = 365,091.30 × 93,691.80
  4. Step 4: Simplify right side
    243,509.40x = 34,206,061,061.34
  5. Step 5: Solve for x
    x = 34,206,061,061.34/243,509.40
  6. Step 6: Final answer
    x = 140,471.21

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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.