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Finding the Fourth Proportional to 79,213.51, 109,319.01 and 45,232.91

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Solution

The fourth proportional to 79,213.51, 109,319.01 and 45,232.91 is: 62,423.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,213.51 : 109,319.01 = 45,232.91 : x
  2. Step 2: Convert to fraction form
    79,213.51/109,319.01 = 45,232.91/x
  3. Step 3: Cross multiply
    79,213.51x = 109,319.01 × 45,232.91
  4. Step 4: Simplify right side
    79,213.51x = 4,944,816,394.02
  5. Step 5: Solve for x
    x = 4,944,816,394.02/79,213.51
  6. Step 6: Final answer
    x = 62,423.91

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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.