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Finding the Fourth Proportional to 92,670.99, 137,814.30 and 89,718.54

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Solution

The fourth proportional to 92,670.99, 137,814.30 and 89,718.54 is: 133,423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,670.99 : 137,814.30 = 89,718.54 : x
  2. Step 2: Convert to fraction form
    92,670.99/137,814.30 = 89,718.54/x
  3. Step 3: Cross multiply
    92,670.99x = 137,814.30 × 89,718.54
  4. Step 4: Simplify right side
    92,670.99x = 12,364,497,787.12
  5. Step 5: Solve for x
    x = 12,364,497,787.12/92,670.99
  6. Step 6: Final answer
    x = 133,423.61

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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.