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Finding the Fourth Proportional to 124,394.17, 171,528.29 and 84,037.86

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Solution

The fourth proportional to 124,394.17, 171,528.29 and 84,037.86 is: 115,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,394.17 : 171,528.29 = 84,037.86 : x
  2. Step 2: Convert to fraction form
    124,394.17/171,528.29 = 84,037.86/x
  3. Step 3: Cross multiply
    124,394.17x = 171,528.29 × 84,037.86
  4. Step 4: Simplify right side
    124,394.17x = 14,414,870,631.15
  5. Step 5: Solve for x
    x = 14,414,870,631.15/124,394.17
  6. Step 6: Final answer
    x = 115,880.60

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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.