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Finding the Fourth Proportional to 55,689.31, 83,460.05 and 48,258.98

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Solution

The fourth proportional to 55,689.31, 83,460.05 and 48,258.98 is: 72,324.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,689.31 : 83,460.05 = 48,258.98 : x
  2. Step 2: Convert to fraction form
    55,689.31/83,460.05 = 48,258.98/x
  3. Step 3: Cross multiply
    55,689.31x = 83,460.05 × 48,258.98
  4. Step 4: Simplify right side
    55,689.31x = 4,027,696,883.75
  5. Step 5: Solve for x
    x = 4,027,696,883.75/55,689.31
  6. Step 6: Final answer
    x = 72,324.42

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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.