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Finding the Fourth Proportional to 73,672.80, 101,948.40 and 63,758.40

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Solution

The fourth proportional to 73,672.80, 101,948.40 and 63,758.40 is: 88,228.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,672.80 : 101,948.40 = 63,758.40 : x
  2. Step 2: Convert to fraction form
    73,672.80/101,948.40 = 63,758.40/x
  3. Step 3: Cross multiply
    73,672.80x = 101,948.40 × 63,758.40
  4. Step 4: Simplify right side
    73,672.80x = 6,500,066,866.56
  5. Step 5: Solve for x
    x = 6,500,066,866.56/73,672.80
  6. Step 6: Final answer
    x = 88,228.86

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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.