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Finding the Fourth Proportional to 191,577.90, 287,366.85 and 49,422.90

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Solution

The fourth proportional to 191,577.90, 287,366.85 and 49,422.90 is: 74,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,577.90 : 287,366.85 = 49,422.90 : x
  2. Step 2: Convert to fraction form
    191,577.90/287,366.85 = 49,422.90/x
  3. Step 3: Cross multiply
    191,577.90x = 287,366.85 × 49,422.90
  4. Step 4: Simplify right side
    191,577.90x = 14,202,503,090.87
  5. Step 5: Solve for x
    x = 14,202,503,090.87/191,577.90
  6. Step 6: Final answer
    x = 74,134.35

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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.