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Finding the Fourth Proportional to 356,627.18, 535,114.92 and 156,922.50

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Solution

The fourth proportional to 356,627.18, 535,114.92 and 156,922.50 is: 235,460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,627.18 : 535,114.92 = 156,922.50 : x
  2. Step 2: Convert to fraction form
    356,627.18/535,114.92 = 156,922.50/x
  3. Step 3: Cross multiply
    356,627.18x = 535,114.92 × 156,922.50
  4. Step 4: Simplify right side
    356,627.18x = 83,971,571,033.70
  5. Step 5: Solve for x
    x = 83,971,571,033.70/356,627.18
  6. Step 6: Final answer
    x = 235,460.38

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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.