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Finding the Fourth Proportional to 101,886.17, 152,613.79 and 64,426.91

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Solution

The fourth proportional to 101,886.17, 152,613.79 and 64,426.91 is: 96,504.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,886.17 : 152,613.79 = 64,426.91 : x
  2. Step 2: Convert to fraction form
    101,886.17/152,613.79 = 64,426.91/x
  3. Step 3: Cross multiply
    101,886.17x = 152,613.79 × 64,426.91
  4. Step 4: Simplify right side
    101,886.17x = 9,832,433,988.95
  5. Step 5: Solve for x
    x = 9,832,433,988.95/101,886.17
  6. Step 6: Final answer
    x = 96,504.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.