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Finding the Fourth Proportional to 58,809.60, 88,311.60 and 39,175.20

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Solution

The fourth proportional to 58,809.60, 88,311.60 and 39,175.20 is: 58,827.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,809.60 : 88,311.60 = 39,175.20 : x
  2. Step 2: Convert to fraction form
    58,809.60/88,311.60 = 39,175.20/x
  3. Step 3: Cross multiply
    58,809.60x = 88,311.60 × 39,175.20
  4. Step 4: Simplify right side
    58,809.60x = 3,459,624,592.32
  5. Step 5: Solve for x
    x = 3,459,624,592.32/58,809.60
  6. Step 6: Final answer
    x = 58,827.55

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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.