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Finding the Fourth Proportional to 92,573.14, 127,703.91 and 54,307.66

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Solution

The fourth proportional to 92,573.14, 127,703.91 and 54,307.66 is: 74,916.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,573.14 : 127,703.91 = 54,307.66 : x
  2. Step 2: Convert to fraction form
    92,573.14/127,703.91 = 54,307.66/x
  3. Step 3: Cross multiply
    92,573.14x = 127,703.91 × 54,307.66
  4. Step 4: Simplify right side
    92,573.14x = 6,935,300,524.95
  5. Step 5: Solve for x
    x = 6,935,300,524.95/92,573.14
  6. Step 6: Final answer
    x = 74,916.98

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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.