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Finding the Fourth Proportional to 58,750.61, 81,235.31 and 57,801.02

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Solution

The fourth proportional to 58,750.61, 81,235.31 and 57,801.02 is: 79,922.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,750.61 : 81,235.31 = 57,801.02 : x
  2. Step 2: Convert to fraction form
    58,750.61/81,235.31 = 57,801.02/x
  3. Step 3: Cross multiply
    58,750.61x = 81,235.31 × 57,801.02
  4. Step 4: Simplify right side
    58,750.61x = 4,695,483,082.83
  5. Step 5: Solve for x
    x = 4,695,483,082.83/58,750.61
  6. Step 6: Final answer
    x = 79,922.29

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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.