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Finding the Fourth Proportional to 86,737.60, 130,130.88 and 24,408.64

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Solution

The fourth proportional to 86,737.60, 130,130.88 and 24,408.64 is: 36,619.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,737.60 : 130,130.88 = 24,408.64 : x
  2. Step 2: Convert to fraction form
    86,737.60/130,130.88 = 24,408.64/x
  3. Step 3: Cross multiply
    86,737.60x = 130,130.88 × 24,408.64
  4. Step 4: Simplify right side
    86,737.60x = 3,176,317,802.80
  5. Step 5: Solve for x
    x = 3,176,317,802.80/86,737.60
  6. Step 6: Final answer
    x = 36,619.85

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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.