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Finding the Fourth Proportional to 124,313.64, 171,552.51 and 67,724.88

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Solution

The fourth proportional to 124,313.64, 171,552.51 and 67,724.88 is: 93,460.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,313.64 : 171,552.51 = 67,724.88 : x
  2. Step 2: Convert to fraction form
    124,313.64/171,552.51 = 67,724.88/x
  3. Step 3: Cross multiply
    124,313.64x = 171,552.51 × 67,724.88
  4. Step 4: Simplify right side
    124,313.64x = 11,618,373,153.45
  5. Step 5: Solve for x
    x = 11,618,373,153.45/124,313.64
  6. Step 6: Final answer
    x = 93,460.16

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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.