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Finding the Fourth Proportional to 102,796.68, 141,898.68 and 66,995.52

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Solution

The fourth proportional to 102,796.68, 141,898.68 and 66,995.52 is: 92,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,796.68 : 141,898.68 = 66,995.52 : x
  2. Step 2: Convert to fraction form
    102,796.68/141,898.68 = 66,995.52/x
  3. Step 3: Cross multiply
    102,796.68x = 141,898.68 × 66,995.52
  4. Step 4: Simplify right side
    102,796.68x = 9,506,575,853.91
  5. Step 5: Solve for x
    x = 9,506,575,853.91/102,796.68
  6. Step 6: Final answer
    x = 92,479.41

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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.