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Finding the Fourth Proportional to 70,159.95, 105,177.60 and 25,776.27

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Solution

The fourth proportional to 70,159.95, 105,177.60 and 25,776.27 is: 38,641.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,159.95 : 105,177.60 = 25,776.27 : x
  2. Step 2: Convert to fraction form
    70,159.95/105,177.60 = 25,776.27/x
  3. Step 3: Cross multiply
    70,159.95x = 105,177.60 × 25,776.27
  4. Step 4: Simplify right side
    70,159.95x = 2,711,086,215.55
  5. Step 5: Solve for x
    x = 2,711,086,215.55/70,159.95
  6. Step 6: Final answer
    x = 38,641.51

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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.