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Finding the Fourth Proportional to 79,655.56, 109,899.93 and 45,194.59

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Solution

The fourth proportional to 79,655.56, 109,899.93 and 45,194.59 is: 62,354.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,655.56 : 109,899.93 = 45,194.59 : x
  2. Step 2: Convert to fraction form
    79,655.56/109,899.93 = 45,194.59/x
  3. Step 3: Cross multiply
    79,655.56x = 109,899.93 × 45,194.59
  4. Step 4: Simplify right side
    79,655.56x = 4,966,882,277.38
  5. Step 5: Solve for x
    x = 4,966,882,277.38/79,655.56
  6. Step 6: Final answer
    x = 62,354.50

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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.