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Finding the Fourth Proportional to 355,195.60, 532,421.28 and 165,499.56

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Solution

The fourth proportional to 355,195.60, 532,421.28 and 165,499.56 is: 248,075.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,195.60 : 532,421.28 = 165,499.56 : x
  2. Step 2: Convert to fraction form
    355,195.60/532,421.28 = 165,499.56/x
  3. Step 3: Cross multiply
    355,195.60x = 532,421.28 × 165,499.56
  4. Step 4: Simplify right side
    355,195.60x = 88,115,487,574.64
  5. Step 5: Solve for x
    x = 88,115,487,574.64/355,195.60
  6. Step 6: Final answer
    x = 248,075.95

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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.