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Finding the Fourth Proportional to 295,479.10, 442,927.05 and 145,596.70

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Solution

The fourth proportional to 295,479.10, 442,927.05 and 145,596.70 is: 218,251.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,479.10 : 442,927.05 = 145,596.70 : x
  2. Step 2: Convert to fraction form
    295,479.10/442,927.05 = 145,596.70/x
  3. Step 3: Cross multiply
    295,479.10x = 442,927.05 × 145,596.70
  4. Step 4: Simplify right side
    295,479.10x = 64,488,716,820.74
  5. Step 5: Solve for x
    x = 64,488,716,820.74/295,479.10
  6. Step 6: Final answer
    x = 218,251.36

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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.