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Finding the Fourth Proportional to 487,680.02, 731,544.50 and 155,281.94

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Solution

The fourth proportional to 487,680.02, 731,544.50 and 155,281.94 is: 232,930.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,680.02 : 731,544.50 = 155,281.94 : x
  2. Step 2: Convert to fraction form
    487,680.02/731,544.50 = 155,281.94/x
  3. Step 3: Cross multiply
    487,680.02x = 731,544.50 × 155,281.94
  4. Step 4: Simplify right side
    487,680.02x = 113,595,649,156.33
  5. Step 5: Solve for x
    x = 113,595,649,156.33/487,680.02
  6. Step 6: Final answer
    x = 232,930.70

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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.