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Finding the Fourth Proportional to 238,163.40, 356,726.70 and 144,505.80

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Solution

The fourth proportional to 238,163.40, 356,726.70 and 144,505.80 is: 216,444.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,163.40 : 356,726.70 = 144,505.80 : x
  2. Step 2: Convert to fraction form
    238,163.40/356,726.70 = 144,505.80/x
  3. Step 3: Cross multiply
    238,163.40x = 356,726.70 × 144,505.80
  4. Step 4: Simplify right side
    238,163.40x = 51,549,077,164.86
  5. Step 5: Solve for x
    x = 51,549,077,164.86/238,163.40
  6. Step 6: Final answer
    x = 216,444.16

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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.