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Finding the Fourth Proportional to 99,062.50, 136,708.66 and 54,350.50

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Solution

The fourth proportional to 99,062.50, 136,708.66 and 54,350.50 is: 75,005.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,062.50 : 136,708.66 = 54,350.50 : x
  2. Step 2: Convert to fraction form
    99,062.50/136,708.66 = 54,350.50/x
  3. Step 3: Cross multiply
    99,062.50x = 136,708.66 × 54,350.50
  4. Step 4: Simplify right side
    99,062.50x = 7,430,184,025.33
  5. Step 5: Solve for x
    x = 7,430,184,025.33/99,062.50
  6. Step 6: Final answer
    x = 75,005.01

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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.