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Finding the Fourth Proportional to 90,710.80, 136,066.20 and 41,462.80

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Solution

The fourth proportional to 90,710.80, 136,066.20 and 41,462.80 is: 62,194.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,710.80 : 136,066.20 = 41,462.80 : x
  2. Step 2: Convert to fraction form
    90,710.80/136,066.20 = 41,462.80/x
  3. Step 3: Cross multiply
    90,710.80x = 136,066.20 × 41,462.80
  4. Step 4: Simplify right side
    90,710.80x = 5,641,685,637.36
  5. Step 5: Solve for x
    x = 5,641,685,637.36/90,710.80
  6. Step 6: Final answer
    x = 62,194.20

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1.5x scale

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.