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Finding the Fourth Proportional to 79,225.93, 109,331.79 and 45,691.93

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Solution

The fourth proportional to 79,225.93, 109,331.79 and 45,691.93 is: 63,054.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,225.93 : 109,331.79 = 45,691.93 : x
  2. Step 2: Convert to fraction form
    79,225.93/109,331.79 = 45,691.93/x
  3. Step 3: Cross multiply
    79,225.93x = 109,331.79 × 45,691.93
  4. Step 4: Simplify right side
    79,225.93x = 4,995,580,495.45
  5. Step 5: Solve for x
    x = 4,995,580,495.45/79,225.93
  6. Step 6: Final answer
    x = 63,054.87

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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.