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Finding the Fourth Proportional to 124,433.80, 171,717.78 and 70,714.60

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Solution

The fourth proportional to 124,433.80, 171,717.78 and 70,714.60 is: 97,585.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,433.80 : 171,717.78 = 70,714.60 : x
  2. Step 2: Convert to fraction form
    124,433.80/171,717.78 = 70,714.60/x
  3. Step 3: Cross multiply
    124,433.80x = 171,717.78 × 70,714.60
  4. Step 4: Simplify right side
    124,433.80x = 12,142,954,125.59
  5. Step 5: Solve for x
    x = 12,142,954,125.59/124,433.80
  6. Step 6: Final answer
    x = 97,585.66

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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.