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Finding the Fourth Proportional to 55,695.80, 83,543.70 and 48,916.10

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Solution

The fourth proportional to 55,695.80, 83,543.70 and 48,916.10 is: 73,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,695.80 : 83,543.70 = 48,916.10 : x
  2. Step 2: Convert to fraction form
    55,695.80/83,543.70 = 48,916.10/x
  3. Step 3: Cross multiply
    55,695.80x = 83,543.70 × 48,916.10
  4. Step 4: Simplify right side
    55,695.80x = 4,086,631,983.57
  5. Step 5: Solve for x
    x = 4,086,631,983.57/55,695.80
  6. Step 6: Final answer
    x = 73,374.15

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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.