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Finding the Fourth Proportional to 144,415.85, 216,603.72 and 44,579.30

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Solution

The fourth proportional to 144,415.85, 216,603.72 and 44,579.30 is: 66,862.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,415.85 : 216,603.72 = 44,579.30 : x
  2. Step 2: Convert to fraction form
    144,415.85/216,603.72 = 44,579.30/x
  3. Step 3: Cross multiply
    144,415.85x = 216,603.72 × 44,579.30
  4. Step 4: Simplify right side
    144,415.85x = 9,656,041,131.98
  5. Step 5: Solve for x
    x = 9,656,041,131.98/144,415.85
  6. Step 6: Final answer
    x = 66,862.75

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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.