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Finding the Fourth Proportional to 90,698.73, 136,047.66 and 23,230.63

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Solution

The fourth proportional to 90,698.73, 136,047.66 and 23,230.63 is: 34,845.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,698.73 : 136,047.66 = 23,230.63 : x
  2. Step 2: Convert to fraction form
    90,698.73/136,047.66 = 23,230.63/x
  3. Step 3: Cross multiply
    90,698.73x = 136,047.66 × 23,230.63
  4. Step 4: Simplify right side
    90,698.73x = 3,160,472,851.83
  5. Step 5: Solve for x
    x = 3,160,472,851.83/90,698.73
  6. Step 6: Final answer
    x = 34,845.83

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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.