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Finding the Fourth Proportional to 266,511.71, 367,785.56 and 151,790.36

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Solution

The fourth proportional to 266,511.71, 367,785.56 and 151,790.36 is: 209,470.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,511.71 : 367,785.56 = 151,790.36 : x
  2. Step 2: Convert to fraction form
    266,511.71/367,785.56 = 151,790.36/x
  3. Step 3: Cross multiply
    266,511.71x = 367,785.56 × 151,790.36
  4. Step 4: Simplify right side
    266,511.71x = 55,826,301,095.75
  5. Step 5: Solve for x
    x = 55,826,301,095.75/266,511.71
  6. Step 6: Final answer
    x = 209,470.35

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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.