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Finding the Fourth Proportional to 123,182.64, 169,992 and 66,594

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Solution

The fourth proportional to 123,182.64, 169,992 and 66,594 is: 91,899.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,182.64 : 169,992 = 66,594 : x
  2. Step 2: Convert to fraction form
    123,182.64/169,992 = 66,594/x
  3. Step 3: Cross multiply
    123,182.64x = 169,992 × 66,594
  4. Step 4: Simplify right side
    123,182.64x = 11,320,447,248
  5. Step 5: Solve for x
    x = 11,320,447,248/123,182.64
  6. Step 6: Final answer
    x = 91,899.70

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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.