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Finding the Fourth Proportional to 124,954.59, 172,422.45 and 70,503.54

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Solution

The fourth proportional to 124,954.59, 172,422.45 and 70,503.54 is: 97,286.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,954.59 : 172,422.45 = 70,503.54 : x
  2. Step 2: Convert to fraction form
    124,954.59/172,422.45 = 70,503.54/x
  3. Step 3: Cross multiply
    124,954.59x = 172,422.45 × 70,503.54
  4. Step 4: Simplify right side
    124,954.59x = 12,156,393,100.47
  5. Step 5: Solve for x
    x = 12,156,393,100.47/124,954.59
  6. Step 6: Final answer
    x = 97,286.49

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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.