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Finding the Fourth Proportional to 99,028.50, 136,659.87 and 58,762.50

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Solution

The fourth proportional to 99,028.50, 136,659.87 and 58,762.50 is: 81,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,028.50 : 136,659.87 = 58,762.50 : x
  2. Step 2: Convert to fraction form
    99,028.50/136,659.87 = 58,762.50/x
  3. Step 3: Cross multiply
    99,028.50x = 136,659.87 × 58,762.50
  4. Step 4: Simplify right side
    99,028.50x = 8,030,475,610.88
  5. Step 5: Solve for x
    x = 8,030,475,610.88/99,028.50
  6. Step 6: Final answer
    x = 81,092.57

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1.5x scale

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.