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Finding the Fourth Proportional to 266,772.41, 368,157.72 and 153,631.61

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Solution

The fourth proportional to 266,772.41, 368,157.72 and 153,631.61 is: 212,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,772.41 : 368,157.72 = 153,631.61 : x
  2. Step 2: Convert to fraction form
    266,772.41/368,157.72 = 153,631.61/x
  3. Step 3: Cross multiply
    266,772.41x = 368,157.72 × 153,631.61
  4. Step 4: Simplify right side
    266,772.41x = 56,560,661,416.74
  5. Step 5: Solve for x
    x = 56,560,661,416.74/266,772.41
  6. Step 6: Final answer
    x = 212,018.41

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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.