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Finding the Fourth Proportional to 66,845.97, 92,275.90 and 45,047.03

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Solution

The fourth proportional to 66,845.97, 92,275.90 and 45,047.03 is: 62,184.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,845.97 : 92,275.90 = 45,047.03 : x
  2. Step 2: Convert to fraction form
    66,845.97/92,275.90 = 45,047.03/x
  3. Step 3: Cross multiply
    66,845.97x = 92,275.90 × 45,047.03
  4. Step 4: Simplify right side
    66,845.97x = 4,156,754,661.58
  5. Step 5: Solve for x
    x = 4,156,754,661.58/66,845.97
  6. Step 6: Final answer
    x = 62,184.07

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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.