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Finding the Fourth Proportional to 103,691.52, 155,692.80 and 59,368.32

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Solution

The fourth proportional to 103,691.52, 155,692.80 and 59,368.32 is: 89,141.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,691.52 : 155,692.80 = 59,368.32 : x
  2. Step 2: Convert to fraction form
    103,691.52/155,692.80 = 59,368.32/x
  3. Step 3: Cross multiply
    103,691.52x = 155,692.80 × 59,368.32
  4. Step 4: Simplify right side
    103,691.52x = 9,243,219,972.10
  5. Step 5: Solve for x
    x = 9,243,219,972.10/103,691.52
  6. Step 6: Final answer
    x = 89,141.52

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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.