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Finding the Fourth Proportional to 354,803.85, 532,290.51 and 118,148.58

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Solution

The fourth proportional to 354,803.85, 532,290.51 and 118,148.58 is: 177,251.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,803.85 : 532,290.51 = 118,148.58 : x
  2. Step 2: Convert to fraction form
    354,803.85/532,290.51 = 118,148.58/x
  3. Step 3: Cross multiply
    354,803.85x = 532,290.51 × 118,148.58
  4. Step 4: Simplify right side
    354,803.85x = 62,889,367,903.98
  5. Step 5: Solve for x
    x = 62,889,367,903.98/354,803.85
  6. Step 6: Final answer
    x = 177,251.09

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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.