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Finding the Fourth Proportional to 79,710.48, 110,016.23 and 45,740.90

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Solution

The fourth proportional to 79,710.48, 110,016.23 and 45,740.90 is: 63,131.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,710.48 : 110,016.23 = 45,740.90 : x
  2. Step 2: Convert to fraction form
    79,710.48/110,016.23 = 45,740.90/x
  3. Step 3: Cross multiply
    79,710.48x = 110,016.23 × 45,740.90
  4. Step 4: Simplify right side
    79,710.48x = 5,032,241,421.14
  5. Step 5: Solve for x
    x = 5,032,241,421.14/79,710.48
  6. Step 6: Final answer
    x = 63,131.49

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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.