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Finding the Fourth Proportional to 124,497.68, 171,795.24 and 70,772.20

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Solution

The fourth proportional to 124,497.68, 171,795.24 and 70,772.20 is: 97,659.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,497.68 : 171,795.24 = 70,772.20 : x
  2. Step 2: Convert to fraction form
    124,497.68/171,795.24 = 70,772.20/x
  3. Step 3: Cross multiply
    124,497.68x = 171,795.24 × 70,772.20
  4. Step 4: Simplify right side
    124,497.68x = 12,158,327,084.33
  5. Step 5: Solve for x
    x = 12,158,327,084.33/124,497.68
  6. Step 6: Final answer
    x = 97,659.07

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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.