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Finding the Fourth Proportional to 191,881.08, 287,881.56 and 65,524.32

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Solution

The fourth proportional to 191,881.08, 287,881.56 and 65,524.32 is: 98,306.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,881.08 : 287,881.56 = 65,524.32 : x
  2. Step 2: Convert to fraction form
    191,881.08/287,881.56 = 65,524.32/x
  3. Step 3: Cross multiply
    191,881.08x = 287,881.56 × 65,524.32
  4. Step 4: Simplify right side
    191,881.08x = 18,863,243,459.54
  5. Step 5: Solve for x
    x = 18,863,243,459.54/191,881.08
  6. Step 6: Final answer
    x = 98,306.95

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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.