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Finding the Fourth Proportional to 58,862.58, 81,253.89 and 36,210.78

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Solution

The fourth proportional to 58,862.58, 81,253.89 and 36,210.78 is: 49,985.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,862.58 : 81,253.89 = 36,210.78 : x
  2. Step 2: Convert to fraction form
    58,862.58/81,253.89 = 36,210.78/x
  3. Step 3: Cross multiply
    58,862.58x = 81,253.89 × 36,210.78
  4. Step 4: Simplify right side
    58,862.58x = 2,942,266,734.93
  5. Step 5: Solve for x
    x = 2,942,266,734.93/58,862.58
  6. Step 6: Final answer
    x = 49,985.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.