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Finding the Fourth Proportional to 266,964.94, 368,428.72 and 153,785.74

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Solution

The fourth proportional to 266,964.94, 368,428.72 and 153,785.74 is: 212,234.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,964.94 : 368,428.72 = 153,785.74 : x
  2. Step 2: Convert to fraction form
    266,964.94/368,428.72 = 153,785.74/x
  3. Step 3: Cross multiply
    266,964.94x = 368,428.72 × 153,785.74
  4. Step 4: Simplify right side
    266,964.94x = 56,659,081,115.84
  5. Step 5: Solve for x
    x = 56,659,081,115.84/266,964.94
  6. Step 6: Final answer
    x = 212,234.17

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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.