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Finding the Fourth Proportional to 266,869.66, 368,243.76 and 159,416.88

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Solution

The fourth proportional to 266,869.66, 368,243.76 and 159,416.88 is: 219,973.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,869.66 : 368,243.76 = 159,416.88 : x
  2. Step 2: Convert to fraction form
    266,869.66/368,243.76 = 159,416.88/x
  3. Step 3: Cross multiply
    266,869.66x = 368,243.76 × 159,416.88
  4. Step 4: Simplify right side
    266,869.66x = 58,704,270,501.58
  5. Step 5: Solve for x
    x = 58,704,270,501.58/266,869.66
  6. Step 6: Final answer
    x = 219,973.57

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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.