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Finding the Fourth Proportional to 124,713.59, 172,104.48 and 68,124.96

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Solution

The fourth proportional to 124,713.59, 172,104.48 and 68,124.96 is: 94,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,713.59 : 172,104.48 = 68,124.96 : x
  2. Step 2: Convert to fraction form
    124,713.59/172,104.48 = 68,124.96/x
  3. Step 3: Cross multiply
    124,713.59x = 172,104.48 × 68,124.96
  4. Step 4: Simplify right side
    124,713.59x = 11,724,610,815.82
  5. Step 5: Solve for x
    x = 11,724,610,815.82/124,713.59
  6. Step 6: Final answer
    x = 94,012.30

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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.