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Finding the Fourth Proportional to 124,608, 171,957.48 and 70,892.88

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Solution

The fourth proportional to 124,608, 171,957.48 and 70,892.88 is: 97,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,608 : 171,957.48 = 70,892.88 : x
  2. Step 2: Convert to fraction form
    124,608/171,957.48 = 70,892.88/x
  3. Step 3: Cross multiply
    124,608x = 171,957.48 × 70,892.88
  4. Step 4: Simplify right side
    124,608x = 12,190,560,994.74
  5. Step 5: Solve for x
    x = 12,190,560,994.74/124,608
  6. Step 6: Final answer
    x = 97,831.29

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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.