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Finding the Fourth Proportional to 136,656.76, 188,586.56 and 75,401.53

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Solution

The fourth proportional to 136,656.76, 188,586.56 and 75,401.53 is: 104,054.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,656.76 : 188,586.56 = 75,401.53 : x
  2. Step 2: Convert to fraction form
    136,656.76/188,586.56 = 75,401.53/x
  3. Step 3: Cross multiply
    136,656.76x = 188,586.56 × 75,401.53
  4. Step 4: Simplify right side
    136,656.76x = 14,219,714,784.43
  5. Step 5: Solve for x
    x = 14,219,714,784.43/136,656.76
  6. Step 6: Final answer
    x = 104,054.24

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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.