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Finding the Fourth Proportional to 355,000.80, 532,371.60 and 118,351.20

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Solution

The fourth proportional to 355,000.80, 532,371.60 and 118,351.20 is: 177,483.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,000.80 : 532,371.60 = 118,351.20 : x
  2. Step 2: Convert to fraction form
    355,000.80/532,371.60 = 118,351.20/x
  3. Step 3: Cross multiply
    355,000.80x = 532,371.60 × 118,351.20
  4. Step 4: Simplify right side
    355,000.80x = 63,006,817,705.92
  5. Step 5: Solve for x
    x = 63,006,817,705.92/355,000.80
  6. Step 6: Final answer
    x = 177,483.59

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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.