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Finding the Fourth Proportional to 48,135.60, 72,203.40 and 32,389.20

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Solution

The fourth proportional to 48,135.60, 72,203.40 and 32,389.20 is: 48,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,135.60 : 72,203.40 = 32,389.20 : x
  2. Step 2: Convert to fraction form
    48,135.60/72,203.40 = 32,389.20/x
  3. Step 3: Cross multiply
    48,135.60x = 72,203.40 × 32,389.20
  4. Step 4: Simplify right side
    48,135.60x = 2,338,610,363.28
  5. Step 5: Solve for x
    x = 2,338,610,363.28/48,135.60
  6. Step 6: Final answer
    x = 48,583.80

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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.