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Finding the Fourth Proportional to 79,656.68, 109,921.38 and 46,116.20

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Solution

The fourth proportional to 79,656.68, 109,921.38 and 46,116.20 is: 63,637.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,656.68 : 109,921.38 = 46,116.20 : x
  2. Step 2: Convert to fraction form
    79,656.68/109,921.38 = 46,116.20/x
  3. Step 3: Cross multiply
    79,656.68x = 109,921.38 × 46,116.20
  4. Step 4: Simplify right side
    79,656.68x = 5,069,156,344.36
  5. Step 5: Solve for x
    x = 5,069,156,344.36/79,656.68
  6. Step 6: Final answer
    x = 63,637.55

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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.