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Finding the Fourth Proportional to 105,402.64, 158,092.28 and 26,516.88

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Solution

The fourth proportional to 105,402.64, 158,092.28 and 26,516.88 is: 39,772.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,402.64 : 158,092.28 = 26,516.88 : x
  2. Step 2: Convert to fraction form
    105,402.64/158,092.28 = 26,516.88/x
  3. Step 3: Cross multiply
    105,402.64x = 158,092.28 × 26,516.88
  4. Step 4: Simplify right side
    105,402.64x = 4,192,114,017.69
  5. Step 5: Solve for x
    x = 4,192,114,017.69/105,402.64
  6. Step 6: Final answer
    x = 39,772.38

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1.5x scale

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.