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Finding the Fourth Proportional to 92,698, 137,854.53 and 89,745.52

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Solution

The fourth proportional to 92,698, 137,854.53 and 89,745.52 is: 133,463.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,698 : 137,854.53 = 89,745.52 : x
  2. Step 2: Convert to fraction form
    92,698/137,854.53 = 89,745.52/x
  3. Step 3: Cross multiply
    92,698x = 137,854.53 × 89,745.52
  4. Step 4: Simplify right side
    92,698x = 12,371,826,479.21
  5. Step 5: Solve for x
    x = 12,371,826,479.21/92,698
  6. Step 6: Final answer
    x = 133,463.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.