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Finding the Fourth Proportional to 124,598.52, 171,893.88 and 81,588.60

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Solution

The fourth proportional to 124,598.52, 171,893.88 and 81,588.60 is: 112,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,598.52 : 171,893.88 = 81,588.60 : x
  2. Step 2: Convert to fraction form
    124,598.52/171,893.88 = 81,588.60/x
  3. Step 3: Cross multiply
    124,598.52x = 171,893.88 × 81,588.60
  4. Step 4: Simplify right side
    124,598.52x = 14,024,581,017.77
  5. Step 5: Solve for x
    x = 14,024,581,017.77/124,598.52
  6. Step 6: Final answer
    x = 112,558.17

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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.