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Finding the Fourth Proportional to 354,624.20, 532,009.20 and 118,136.60

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Solution

The fourth proportional to 354,624.20, 532,009.20 and 118,136.60 is: 177,229.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,624.20 : 532,009.20 = 118,136.60 : x
  2. Step 2: Convert to fraction form
    354,624.20/532,009.20 = 118,136.60/x
  3. Step 3: Cross multiply
    354,624.20x = 532,009.20 × 118,136.60
  4. Step 4: Simplify right side
    354,624.20x = 62,849,758,056.72
  5. Step 5: Solve for x
    x = 62,849,758,056.72/354,624.20
  6. Step 6: Final answer
    x = 177,229.19

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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.