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Finding the Fourth Proportional to 266,729.92, 368,180 and 153,597.76

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Solution

The fourth proportional to 266,729.92, 368,180 and 153,597.76 is: 212,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,729.92 : 368,180 = 153,597.76 : x
  2. Step 2: Convert to fraction form
    266,729.92/368,180 = 153,597.76/x
  3. Step 3: Cross multiply
    266,729.92x = 368,180 × 153,597.76
  4. Step 4: Simplify right side
    266,729.92x = 56,551,623,276.80
  5. Step 5: Solve for x
    x = 56,551,623,276.80/266,729.92
  6. Step 6: Final answer
    x = 212,018.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.