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Finding the Fourth Proportional to 124,894.59, 172,355.90 and 68,304.75

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Solution

The fourth proportional to 124,894.59, 172,355.90 and 68,304.75 is: 94,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,894.59 : 172,355.90 = 68,304.75 : x
  2. Step 2: Convert to fraction form
    124,894.59/172,355.90 = 68,304.75/x
  3. Step 3: Cross multiply
    124,894.59x = 172,355.90 × 68,304.75
  4. Step 4: Simplify right side
    124,894.59x = 11,772,726,319.00
  5. Step 5: Solve for x
    x = 11,772,726,319.00/124,894.59
  6. Step 6: Final answer
    x = 94,261.30

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1.5x scale

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.