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Finding the Fourth Proportional to 103,363.57, 155,045.35 and 33,242.88

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Solution

The fourth proportional to 103,363.57, 155,045.35 and 33,242.88 is: 49,864.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,363.57 : 155,045.35 = 33,242.88 : x
  2. Step 2: Convert to fraction form
    103,363.57/155,045.35 = 33,242.88/x
  3. Step 3: Cross multiply
    103,363.57x = 155,045.35 × 33,242.88
  4. Step 4: Simplify right side
    103,363.57x = 5,154,153,023.17
  5. Step 5: Solve for x
    x = 5,154,153,023.17/103,363.57
  6. Step 6: Final answer
    x = 49,864.31

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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.