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Finding the Fourth Proportional to 124,690.59, 172,081.80 and 70,975.62

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Solution

The fourth proportional to 124,690.59, 172,081.80 and 70,975.62 is: 97,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,690.59 : 172,081.80 = 70,975.62 : x
  2. Step 2: Convert to fraction form
    124,690.59/172,081.80 = 70,975.62/x
  3. Step 3: Cross multiply
    124,690.59x = 172,081.80 × 70,975.62
  4. Step 4: Simplify right side
    124,690.59x = 12,213,612,445.72
  5. Step 5: Solve for x
    x = 12,213,612,445.72/124,690.59
  6. Step 6: Final answer
    x = 97,951.36

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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.