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Finding the Fourth Proportional to 197,706.80, 272,834.90 and 107,062.80

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Solution

The fourth proportional to 197,706.80, 272,834.90 and 107,062.80 is: 147,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,706.80 : 272,834.90 = 107,062.80 : x
  2. Step 2: Convert to fraction form
    197,706.80/272,834.90 = 107,062.80/x
  3. Step 3: Cross multiply
    197,706.80x = 272,834.90 × 107,062.80
  4. Step 4: Simplify right side
    197,706.80x = 29,210,468,331.72
  5. Step 5: Solve for x
    x = 29,210,468,331.72/197,706.80
  6. Step 6: Final answer
    x = 147,746.40

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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.