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Finding the Fourth Proportional to 108,479.88, 149,597.04 and 84,597.84

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Solution

The fourth proportional to 108,479.88, 149,597.04 and 84,597.84 is: 116,662.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,479.88 : 149,597.04 = 84,597.84 : x
  2. Step 2: Convert to fraction form
    108,479.88/149,597.04 = 84,597.84/x
  3. Step 3: Cross multiply
    108,479.88x = 149,597.04 × 84,597.84
  4. Step 4: Simplify right side
    108,479.88x = 12,655,586,454.39
  5. Step 5: Solve for x
    x = 12,655,586,454.39/108,479.88
  6. Step 6: Final answer
    x = 116,662.98

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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.