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Finding the Fourth Proportional to 124,894.80, 172,344.04 and 70,443.97

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Solution

The fourth proportional to 124,894.80, 172,344.04 and 70,443.97 is: 97,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,894.80 : 172,344.04 = 70,443.97 : x
  2. Step 2: Convert to fraction form
    124,894.80/172,344.04 = 70,443.97/x
  3. Step 3: Cross multiply
    124,894.80x = 172,344.04 × 70,443.97
  4. Step 4: Simplify right side
    124,894.80x = 12,140,598,383.44
  5. Step 5: Solve for x
    x = 12,140,598,383.44/124,894.80
  6. Step 6: Final answer
    x = 97,206.60

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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.