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Finding the Fourth Proportional to 266,458.56, 367,723.52 and 153,281.28

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Solution

The fourth proportional to 266,458.56, 367,723.52 and 153,281.28 is: 211,534.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,458.56 : 367,723.52 = 153,281.28 : x
  2. Step 2: Convert to fraction form
    266,458.56/367,723.52 = 153,281.28/x
  3. Step 3: Cross multiply
    266,458.56x = 367,723.52 × 153,281.28
  4. Step 4: Simplify right side
    266,458.56x = 56,365,131,831.71
  5. Step 5: Solve for x
    x = 56,365,131,831.71/266,458.56
  6. Step 6: Final answer
    x = 211,534.33

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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.