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Finding the Fourth Proportional to 74,017.20, 110,807.10 and 65,269.20

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Solution

The fourth proportional to 74,017.20, 110,807.10 and 65,269.20 is: 97,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,017.20 : 110,807.10 = 65,269.20 : x
  2. Step 2: Convert to fraction form
    74,017.20/110,807.10 = 65,269.20/x
  3. Step 3: Cross multiply
    74,017.20x = 110,807.10 × 65,269.20
  4. Step 4: Simplify right side
    74,017.20x = 7,232,290,771.32
  5. Step 5: Solve for x
    x = 7,232,290,771.32/74,017.20
  6. Step 6: Final answer
    x = 97,710.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.