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Finding the Fourth Proportional to 117,471.98, 162,037.60 and 69,691.50

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Solution

The fourth proportional to 117,471.98, 162,037.60 and 69,691.50 is: 96,130.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,471.98 : 162,037.60 = 69,691.50 : x
  2. Step 2: Convert to fraction form
    117,471.98/162,037.60 = 69,691.50/x
  3. Step 3: Cross multiply
    117,471.98x = 162,037.60 × 69,691.50
  4. Step 4: Simplify right side
    117,471.98x = 11,292,643,226.17
  5. Step 5: Solve for x
    x = 11,292,643,226.17/117,471.98
  6. Step 6: Final answer
    x = 96,130.52

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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.