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Finding the Fourth Proportional to 185,259.12, 255,652.80 and 104,695.20

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Solution

The fourth proportional to 185,259.12, 255,652.80 and 104,695.20 is: 144,476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,259.12 : 255,652.80 = 104,695.20 : x
  2. Step 2: Convert to fraction form
    185,259.12/255,652.80 = 104,695.20/x
  3. Step 3: Cross multiply
    185,259.12x = 255,652.80 × 104,695.20
  4. Step 4: Simplify right side
    185,259.12x = 26,765,621,026.56
  5. Step 5: Solve for x
    x = 26,765,621,026.56/185,259.12
  6. Step 6: Final answer
    x = 144,476.67

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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.