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Finding the Fourth Proportional to 191,360.53, 287,105.37 and 84,729.93

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Solution

The fourth proportional to 191,360.53, 287,105.37 and 84,729.93 is: 127,123.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,360.53 : 287,105.37 = 84,729.93 : x
  2. Step 2: Convert to fraction form
    191,360.53/287,105.37 = 84,729.93/x
  3. Step 3: Cross multiply
    191,360.53x = 287,105.37 × 84,729.93
  4. Step 4: Simplify right side
    191,360.53x = 24,326,416,508.34
  5. Step 5: Solve for x
    x = 24,326,416,508.34/191,360.53
  6. Step 6: Final answer
    x = 127,123.48

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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.