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Finding the Fourth Proportional to 351,767.76, 527,336.16 and 127,075.44

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Solution

The fourth proportional to 351,767.76, 527,336.16 and 127,075.44 is: 190,499.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,767.76 : 527,336.16 = 127,075.44 : x
  2. Step 2: Convert to fraction form
    351,767.76/527,336.16 = 127,075.44/x
  3. Step 3: Cross multiply
    351,767.76x = 527,336.16 × 127,075.44
  4. Step 4: Simplify right side
    351,767.76x = 67,011,474,559.91
  5. Step 5: Solve for x
    x = 67,011,474,559.91/351,767.76
  6. Step 6: Final answer
    x = 190,499.19

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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.