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Finding the Fourth Proportional to 124,498.92, 171,801.60 and 70,776.48

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Solution

The fourth proportional to 124,498.92, 171,801.60 and 70,776.48 is: 97,667.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,498.92 : 171,801.60 = 70,776.48 : x
  2. Step 2: Convert to fraction form
    124,498.92/171,801.60 = 70,776.48/x
  3. Step 3: Cross multiply
    124,498.92x = 171,801.60 × 70,776.48
  4. Step 4: Simplify right side
    124,498.92x = 12,159,512,506.37
  5. Step 5: Solve for x
    x = 12,159,512,506.37/124,498.92
  6. Step 6: Final answer
    x = 97,667.61

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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.