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Finding the Fourth Proportional to 104,402.53, 144,075.87 and 56,655.87

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Solution

The fourth proportional to 104,402.53, 144,075.87 and 56,655.87 is: 78,185.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,402.53 : 144,075.87 = 56,655.87 : x
  2. Step 2: Convert to fraction form
    104,402.53/144,075.87 = 56,655.87/x
  3. Step 3: Cross multiply
    104,402.53x = 144,075.87 × 56,655.87
  4. Step 4: Simplify right side
    104,402.53x = 8,162,743,760.86
  5. Step 5: Solve for x
    x = 8,162,743,760.86/104,402.53
  6. Step 6: Final answer
    x = 78,185.31

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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.