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Finding the Fourth Proportional to 96,620.64, 133,275.12 and 69,802.56

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Solution

The fourth proportional to 96,620.64, 133,275.12 and 69,802.56 is: 96,283.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,620.64 : 133,275.12 = 69,802.56 : x
  2. Step 2: Convert to fraction form
    96,620.64/133,275.12 = 69,802.56/x
  3. Step 3: Cross multiply
    96,620.64x = 133,275.12 × 69,802.56
  4. Step 4: Simplify right side
    96,620.64x = 9,302,944,560.31
  5. Step 5: Solve for x
    x = 9,302,944,560.31/96,620.64
  6. Step 6: Final answer
    x = 96,283.20

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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.