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Finding the Fourth Proportional to 66,876.99, 92,275.08 and 45,369.66

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Solution

The fourth proportional to 66,876.99, 92,275.08 and 45,369.66 is: 62,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,876.99 : 92,275.08 = 45,369.66 : x
  2. Step 2: Convert to fraction form
    66,876.99/92,275.08 = 45,369.66/x
  3. Step 3: Cross multiply
    66,876.99x = 92,275.08 × 45,369.66
  4. Step 4: Simplify right side
    66,876.99x = 4,186,489,437.17
  5. Step 5: Solve for x
    x = 4,186,489,437.17/66,876.99
  6. Step 6: Final answer
    x = 62,599.85

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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.