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Finding the Fourth Proportional to 123,182.68, 169,988.58 and 69,467.16

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Solution

The fourth proportional to 123,182.68, 169,988.58 and 69,467.16 is: 95,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,182.68 : 169,988.58 = 69,467.16 : x
  2. Step 2: Convert to fraction form
    123,182.68/169,988.58 = 69,467.16/x
  3. Step 3: Cross multiply
    123,182.68x = 169,988.58 × 69,467.16
  4. Step 4: Simplify right side
    123,182.68x = 11,808,623,885.03
  5. Step 5: Solve for x
    x = 11,808,623,885.03/123,182.68
  6. Step 6: Final answer
    x = 95,862.70

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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.