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Finding the Fourth Proportional to 110,630.46, 152,630.66 and 65,285.74

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Solution

The fourth proportional to 110,630.46, 152,630.66 and 65,285.74 is: 90,071.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,630.46 : 152,630.66 = 65,285.74 : x
  2. Step 2: Convert to fraction form
    110,630.46/152,630.66 = 65,285.74/x
  3. Step 3: Cross multiply
    110,630.46x = 152,630.66 × 65,285.74
  4. Step 4: Simplify right side
    110,630.46x = 9,964,605,584.79
  5. Step 5: Solve for x
    x = 9,964,605,584.79/110,630.46
  6. Step 6: Final answer
    x = 90,071.09

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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.