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Finding the Fourth Proportional to 170,702.40, 235,531.62 and 99,040.92

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Solution

The fourth proportional to 170,702.40, 235,531.62 and 99,040.92 is: 136,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,702.40 : 235,531.62 = 99,040.92 : x
  2. Step 2: Convert to fraction form
    170,702.40/235,531.62 = 99,040.92/x
  3. Step 3: Cross multiply
    170,702.40x = 235,531.62 × 99,040.92
  4. Step 4: Simplify right side
    170,702.40x = 23,327,268,333.89
  5. Step 5: Solve for x
    x = 23,327,268,333.89/170,702.40
  6. Step 6: Final answer
    x = 136,654.60

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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.