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Finding the Fourth Proportional to 48,503.20, 72,801.20 and 25,146.40

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Solution

The fourth proportional to 48,503.20, 72,801.20 and 25,146.40 is: 37,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,503.20 : 72,801.20 = 25,146.40 : x
  2. Step 2: Convert to fraction form
    48,503.20/72,801.20 = 25,146.40/x
  3. Step 3: Cross multiply
    48,503.20x = 72,801.20 × 25,146.40
  4. Step 4: Simplify right side
    48,503.20x = 1,830,688,095.68
  5. Step 5: Solve for x
    x = 1,830,688,095.68/48,503.20
  6. Step 6: Final answer
    x = 37,743.66

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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.