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Finding the Fourth Proportional to 124,422.60, 171,705.76 and 69,975.82

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Solution

The fourth proportional to 124,422.60, 171,705.76 and 69,975.82 is: 96,568.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,422.60 : 171,705.76 = 69,975.82 : x
  2. Step 2: Convert to fraction form
    124,422.60/171,705.76 = 69,975.82/x
  3. Step 3: Cross multiply
    124,422.60x = 171,705.76 × 69,975.82
  4. Step 4: Simplify right side
    124,422.60x = 12,015,251,354.72
  5. Step 5: Solve for x
    x = 12,015,251,354.72/124,422.60
  6. Step 6: Final answer
    x = 96,568.08

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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.