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Finding the Fourth Proportional to 48,167.76, 72,145.80 and 39,752.40

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Solution

The fourth proportional to 48,167.76, 72,145.80 and 39,752.40 is: 59,541.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,167.76 : 72,145.80 = 39,752.40 : x
  2. Step 2: Convert to fraction form
    48,167.76/72,145.80 = 39,752.40/x
  3. Step 3: Cross multiply
    48,167.76x = 72,145.80 × 39,752.40
  4. Step 4: Simplify right side
    48,167.76x = 2,867,968,699.92
  5. Step 5: Solve for x
    x = 2,867,968,699.92/48,167.76
  6. Step 6: Final answer
    x = 59,541.25

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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.