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Finding the Fourth Proportional to 123,497.64, 170,424.52 and 69,781.52

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Solution

The fourth proportional to 123,497.64, 170,424.52 and 69,781.52 is: 96,297.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,497.64 : 170,424.52 = 69,781.52 : x
  2. Step 2: Convert to fraction form
    123,497.64/170,424.52 = 69,781.52/x
  3. Step 3: Cross multiply
    123,497.64x = 170,424.52 × 69,781.52
  4. Step 4: Simplify right side
    123,497.64x = 11,892,482,302.48
  5. Step 5: Solve for x
    x = 11,892,482,302.48/123,497.64
  6. Step 6: Final answer
    x = 96,297.24

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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.