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Finding the Fourth Proportional to 108,474.88, 149,590.16 and 84,592.84

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Solution

The fourth proportional to 108,474.88, 149,590.16 and 84,592.84 is: 116,656.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,474.88 : 149,590.16 = 84,592.84 : x
  2. Step 2: Convert to fraction form
    108,474.88/149,590.16 = 84,592.84/x
  3. Step 3: Cross multiply
    108,474.88x = 149,590.16 × 84,592.84
  4. Step 4: Simplify right side
    108,474.88x = 12,654,256,470.45
  5. Step 5: Solve for x
    x = 12,654,256,470.45/108,474.88
  6. Step 6: Final answer
    x = 116,656.10

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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.