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Finding the Fourth Proportional to 124,873.16, 172,321.46 and 68,283.32

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Solution

The fourth proportional to 124,873.16, 172,321.46 and 68,283.32 is: 94,229.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,873.16 : 172,321.46 = 68,283.32 : x
  2. Step 2: Convert to fraction form
    124,873.16/172,321.46 = 68,283.32/x
  3. Step 3: Cross multiply
    124,873.16x = 172,321.46 × 68,283.32
  4. Step 4: Simplify right side
    124,873.16x = 11,766,680,547.38
  5. Step 5: Solve for x
    x = 11,766,680,547.38/124,873.16
  6. Step 6: Final answer
    x = 94,229.06

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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.