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Finding the Fourth Proportional to 166,745.16, 230,108.16 and 91,293.60

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Solution

The fourth proportional to 166,745.16, 230,108.16 and 91,293.60 is: 125,985.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,745.16 : 230,108.16 = 91,293.60 : x
  2. Step 2: Convert to fraction form
    166,745.16/230,108.16 = 91,293.60/x
  3. Step 3: Cross multiply
    166,745.16x = 230,108.16 × 91,293.60
  4. Step 4: Simplify right side
    166,745.16x = 21,007,402,315.78
  5. Step 5: Solve for x
    x = 21,007,402,315.78/166,745.16
  6. Step 6: Final answer
    x = 125,985.08

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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.