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Finding the Fourth Proportional to 266,770.53, 368,155.13 and 153,629.73

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Solution

The fourth proportional to 266,770.53, 368,155.13 and 153,629.73 is: 212,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,770.53 : 368,155.13 = 153,629.73 : x
  2. Step 2: Convert to fraction form
    266,770.53/368,155.13 = 153,629.73/x
  3. Step 3: Cross multiply
    266,770.53x = 368,155.13 × 153,629.73
  4. Step 4: Simplify right side
    266,770.53x = 56,559,572,451.87
  5. Step 5: Solve for x
    x = 56,559,572,451.87/266,770.53
  6. Step 6: Final answer
    x = 212,015.82

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1.5x scale

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.