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Finding the Fourth Proportional to 124,584, 171,930.66 and 70,873.92

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Solution

The fourth proportional to 124,584, 171,930.66 and 70,873.92 is: 97,808.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,584 : 171,930.66 = 70,873.92 : x
  2. Step 2: Convert to fraction form
    124,584/171,930.66 = 70,873.92/x
  3. Step 3: Cross multiply
    124,584x = 171,930.66 × 70,873.92
  4. Step 4: Simplify right side
    124,584x = 12,185,399,842.39
  5. Step 5: Solve for x
    x = 12,185,399,842.39/124,584
  6. Step 6: Final answer
    x = 97,808.71

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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.