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Finding the Fourth Proportional to 96,587.80, 144,881.70 and 69,976.60

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Solution

The fourth proportional to 96,587.80, 144,881.70 and 69,976.60 is: 104,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,587.80 : 144,881.70 = 69,976.60 : x
  2. Step 2: Convert to fraction form
    96,587.80/144,881.70 = 69,976.60/x
  3. Step 3: Cross multiply
    96,587.80x = 144,881.70 × 69,976.60
  4. Step 4: Simplify right side
    96,587.80x = 10,138,328,768.22
  5. Step 5: Solve for x
    x = 10,138,328,768.22/96,587.80
  6. Step 6: Final answer
    x = 104,964.90

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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.