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Finding the Fourth Proportional to 141,730.92, 195,472.32 and 103,447.44

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Solution

The fourth proportional to 141,730.92, 195,472.32 and 103,447.44 is: 142,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,730.92 : 195,472.32 = 103,447.44 : x
  2. Step 2: Convert to fraction form
    141,730.92/195,472.32 = 103,447.44/x
  3. Step 3: Cross multiply
    141,730.92x = 195,472.32 × 103,447.44
  4. Step 4: Simplify right side
    141,730.92x = 20,221,111,094.86
  5. Step 5: Solve for x
    x = 20,221,111,094.86/141,730.92
  6. Step 6: Final answer
    x = 142,672.55

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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.