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Finding the Fourth Proportional to 99,293.32, 148,994.70 and 43,887.88

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Solution

The fourth proportional to 99,293.32, 148,994.70 and 43,887.88 is: 65,856.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,293.32 : 148,994.70 = 43,887.88 : x
  2. Step 2: Convert to fraction form
    99,293.32/148,994.70 = 43,887.88/x
  3. Step 3: Cross multiply
    99,293.32x = 148,994.70 × 43,887.88
  4. Step 4: Simplify right side
    99,293.32x = 6,539,061,514.24
  5. Step 5: Solve for x
    x = 6,539,061,514.24/99,293.32
  6. Step 6: Final answer
    x = 65,856.01

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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.