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Finding the Fourth Proportional to 266,016.42, 398,813.49 and 153,569.52

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Solution

The fourth proportional to 266,016.42, 398,813.49 and 153,569.52 is: 230,232.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,016.42 : 398,813.49 = 153,569.52 : x
  2. Step 2: Convert to fraction form
    266,016.42/398,813.49 = 153,569.52/x
  3. Step 3: Cross multiply
    266,016.42x = 398,813.49 × 153,569.52
  4. Step 4: Simplify right side
    266,016.42x = 61,245,596,228.82
  5. Step 5: Solve for x
    x = 61,245,596,228.82/266,016.42
  6. Step 6: Final answer
    x = 230,232.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.