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Finding the Fourth Proportional to 99,232.34, 136,846.80 and 65,180.75

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Solution

The fourth proportional to 99,232.34, 136,846.80 and 65,180.75 is: 89,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,232.34 : 136,846.80 = 65,180.75 : x
  2. Step 2: Convert to fraction form
    99,232.34/136,846.80 = 65,180.75/x
  3. Step 3: Cross multiply
    99,232.34x = 136,846.80 × 65,180.75
  4. Step 4: Simplify right side
    99,232.34x = 8,919,776,374.87
  5. Step 5: Solve for x
    x = 8,919,776,374.87/99,232.34
  6. Step 6: Final answer
    x = 89,887.80

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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.