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Finding the Fourth Proportional to 191,737.20, 287,605.80 and 162,212.70

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Solution

The fourth proportional to 191,737.20, 287,605.80 and 162,212.70 is: 243,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,737.20 : 287,605.80 = 162,212.70 : x
  2. Step 2: Convert to fraction form
    191,737.20/287,605.80 = 162,212.70/x
  3. Step 3: Cross multiply
    191,737.20x = 287,605.80 × 162,212.70
  4. Step 4: Simplify right side
    191,737.20x = 46,653,313,353.66
  5. Step 5: Solve for x
    x = 46,653,313,353.66/191,737.20
  6. Step 6: Final answer
    x = 243,319.05

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1.5x scale

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.