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Finding the Fourth Proportional to 124,520.43, 171,831.20 and 70,818.51

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Solution

The fourth proportional to 124,520.43, 171,831.20 and 70,818.51 is: 97,725.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,520.43 : 171,831.20 = 70,818.51 : x
  2. Step 2: Convert to fraction form
    124,520.43/171,831.20 = 70,818.51/x
  3. Step 3: Cross multiply
    124,520.43x = 171,831.20 × 70,818.51
  4. Step 4: Simplify right side
    124,520.43x = 12,168,829,201.42
  5. Step 5: Solve for x
    x = 12,168,829,201.42/124,520.43
  6. Step 6: Final answer
    x = 97,725.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.