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Finding the Fourth Proportional to 98,475.59, 135,610.29 and 85,548.98

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Solution

The fourth proportional to 98,475.59, 135,610.29 and 85,548.98 is: 117,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,475.59 : 135,610.29 = 85,548.98 : x
  2. Step 2: Convert to fraction form
    98,475.59/135,610.29 = 85,548.98/x
  3. Step 3: Cross multiply
    98,475.59x = 135,610.29 × 85,548.98
  4. Step 4: Simplify right side
    98,475.59x = 11,601,322,326.03
  5. Step 5: Solve for x
    x = 11,601,322,326.03/98,475.59
  6. Step 6: Final answer
    x = 117,809.11

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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.