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Finding the Fourth Proportional to 173,672.10, 239,714.64 and 102,075.12

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Solution

The fourth proportional to 173,672.10, 239,714.64 and 102,075.12 is: 140,891.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,672.10 : 239,714.64 = 102,075.12 : x
  2. Step 2: Convert to fraction form
    173,672.10/239,714.64 = 102,075.12/x
  3. Step 3: Cross multiply
    173,672.10x = 239,714.64 × 102,075.12
  4. Step 4: Simplify right side
    173,672.10x = 24,468,900,643.76
  5. Step 5: Solve for x
    x = 24,468,900,643.76/173,672.10
  6. Step 6: Final answer
    x = 140,891.37

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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.