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Finding the Fourth Proportional to 74,955.83, 112,378.14 and 45,366.63

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Solution

The fourth proportional to 74,955.83, 112,378.14 and 45,366.63 is: 68,016.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,955.83 : 112,378.14 = 45,366.63 : x
  2. Step 2: Convert to fraction form
    74,955.83/112,378.14 = 45,366.63/x
  3. Step 3: Cross multiply
    74,955.83x = 112,378.14 × 45,366.63
  4. Step 4: Simplify right side
    74,955.83x = 5,098,217,497.47
  5. Step 5: Solve for x
    x = 5,098,217,497.47/74,955.83
  6. Step 6: Final answer
    x = 68,016.29

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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.