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Finding the Fourth Proportional to 59,919.72, 82,657.92 and 48,602.40

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Solution

The fourth proportional to 59,919.72, 82,657.92 and 48,602.40 is: 67,045.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,919.72 : 82,657.92 = 48,602.40 : x
  2. Step 2: Convert to fraction form
    59,919.72/82,657.92 = 48,602.40/x
  3. Step 3: Cross multiply
    59,919.72x = 82,657.92 × 48,602.40
  4. Step 4: Simplify right side
    59,919.72x = 4,017,373,291.01
  5. Step 5: Solve for x
    x = 4,017,373,291.01/59,919.72
  6. Step 6: Final answer
    x = 67,045.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.