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Finding the Fourth Proportional to 56,966.58, 85,017.51 and 55,639.80

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Solution

The fourth proportional to 56,966.58, 85,017.51 and 55,639.80 is: 83,037.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,966.58 : 85,017.51 = 55,639.80 : x
  2. Step 2: Convert to fraction form
    56,966.58/85,017.51 = 55,639.80/x
  3. Step 3: Cross multiply
    56,966.58x = 85,017.51 × 55,639.80
  4. Step 4: Simplify right side
    56,966.58x = 4,730,357,252.90
  5. Step 5: Solve for x
    x = 4,730,357,252.90/56,966.58
  6. Step 6: Final answer
    x = 83,037.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.