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Finding the Fourth Proportional to 266,637.84, 368,052.88 and 153,505.68

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Solution

The fourth proportional to 266,637.84, 368,052.88 and 153,505.68 is: 211,891.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,637.84 : 368,052.88 = 153,505.68 : x
  2. Step 2: Convert to fraction form
    266,637.84/368,052.88 = 153,505.68/x
  3. Step 3: Cross multiply
    266,637.84x = 368,052.88 × 153,505.68
  4. Step 4: Simplify right side
    266,637.84x = 56,498,207,620.36
  5. Step 5: Solve for x
    x = 56,498,207,620.36/266,637.84
  6. Step 6: Final answer
    x = 211,891.18

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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.