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Finding the Fourth Proportional to 253,158.48, 349,358.83 and 144,259.72

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Solution

The fourth proportional to 253,158.48, 349,358.83 and 144,259.72 is: 199,078.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,158.48 : 349,358.83 = 144,259.72 : x
  2. Step 2: Convert to fraction form
    253,158.48/349,358.83 = 144,259.72/x
  3. Step 3: Cross multiply
    253,158.48x = 349,358.83 × 144,259.72
  4. Step 4: Simplify right side
    253,158.48x = 50,398,405,761.28
  5. Step 5: Solve for x
    x = 50,398,405,761.28/253,158.48
  6. Step 6: Final answer
    x = 199,078.48

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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.