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Finding the Fourth Proportional to 191,903.90, 287,596.65 and 169,612.70

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Solution

The fourth proportional to 191,903.90, 287,596.65 and 169,612.70 is: 254,189.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,903.90 : 287,596.65 = 169,612.70 : x
  2. Step 2: Convert to fraction form
    191,903.90/287,596.65 = 169,612.70/x
  3. Step 3: Cross multiply
    191,903.90x = 287,596.65 × 169,612.70
  4. Step 4: Simplify right side
    191,903.90x = 48,780,044,317.46
  5. Step 5: Solve for x
    x = 48,780,044,317.46/191,903.90
  6. Step 6: Final answer
    x = 254,189.96

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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.