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Finding the Fourth Proportional to 92,269.70, 138,404.55 and 91,492.10

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Solution

The fourth proportional to 92,269.70, 138,404.55 and 91,492.10 is: 137,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,269.70 : 138,404.55 = 91,492.10 : x
  2. Step 2: Convert to fraction form
    92,269.70/138,404.55 = 91,492.10/x
  3. Step 3: Cross multiply
    92,269.70x = 138,404.55 × 91,492.10
  4. Step 4: Simplify right side
    92,269.70x = 12,662,922,929.06
  5. Step 5: Solve for x
    x = 12,662,922,929.06/92,269.70
  6. Step 6: Final answer
    x = 137,238.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.