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Finding the Fourth Proportional to 58,918.70, 88,248.45 and 51,142.70

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Solution

The fourth proportional to 58,918.70, 88,248.45 and 51,142.70 is: 76,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,918.70 : 88,248.45 = 51,142.70 : x
  2. Step 2: Convert to fraction form
    58,918.70/88,248.45 = 51,142.70/x
  3. Step 3: Cross multiply
    58,918.70x = 88,248.45 × 51,142.70
  4. Step 4: Simplify right side
    58,918.70x = 4,513,264,003.82
  5. Step 5: Solve for x
    x = 4,513,264,003.82/58,918.70
  6. Step 6: Final answer
    x = 76,601.55

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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.