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Finding the Fourth Proportional to 141,702.94, 195,543.75 and 81,230.23

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Solution

The fourth proportional to 141,702.94, 195,543.75 and 81,230.23 is: 112,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,702.94 : 195,543.75 = 81,230.23 : x
  2. Step 2: Convert to fraction form
    141,702.94/195,543.75 = 81,230.23/x
  3. Step 3: Cross multiply
    141,702.94x = 195,543.75 × 81,230.23
  4. Step 4: Simplify right side
    141,702.94x = 15,884,063,787.56
  5. Step 5: Solve for x
    x = 15,884,063,787.56/141,702.94
  6. Step 6: Final answer
    x = 112,094.10

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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.