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Finding the Fourth Proportional to 99,062, 136,707.96 and 54,350

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Solution

The fourth proportional to 99,062, 136,707.96 and 54,350 is: 75,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,062 : 136,707.96 = 54,350 : x
  2. Step 2: Convert to fraction form
    99,062/136,707.96 = 54,350/x
  3. Step 3: Cross multiply
    99,062x = 136,707.96 × 54,350
  4. Step 4: Simplify right side
    99,062x = 7,430,077,626
  5. Step 5: Solve for x
    x = 7,430,077,626/99,062
  6. Step 6: Final answer
    x = 75,004.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.