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Finding the Fourth Proportional to 79,722.48, 110,005.47 and 45,732.39

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Solution

The fourth proportional to 79,722.48, 110,005.47 and 45,732.39 is: 63,104.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,722.48 : 110,005.47 = 45,732.39 : x
  2. Step 2: Convert to fraction form
    79,722.48/110,005.47 = 45,732.39/x
  3. Step 3: Cross multiply
    79,722.48x = 110,005.47 × 45,732.39
  4. Step 4: Simplify right side
    79,722.48x = 5,030,813,056.17
  5. Step 5: Solve for x
    x = 5,030,813,056.17/79,722.48
  6. Step 6: Final answer
    x = 63,104.07

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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.