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Finding the Fourth Proportional to 191,551.80, 287,327.70 and 163,011.45

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Solution

The fourth proportional to 191,551.80, 287,327.70 and 163,011.45 is: 244,517.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,551.80 : 287,327.70 = 163,011.45 : x
  2. Step 2: Convert to fraction form
    191,551.80/287,327.70 = 163,011.45/x
  3. Step 3: Cross multiply
    191,551.80x = 287,327.70 × 163,011.45
  4. Step 4: Simplify right side
    191,551.80x = 46,837,705,002.17
  5. Step 5: Solve for x
    x = 46,837,705,002.17/191,551.80
  6. Step 6: Final answer
    x = 244,517.18

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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.