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Finding the Fourth Proportional to 218,838.15, 328,209.84 and 58,910.13

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Solution

The fourth proportional to 218,838.15, 328,209.84 and 58,910.13 is: 88,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,838.15 : 328,209.84 = 58,910.13 : x
  2. Step 2: Convert to fraction form
    218,838.15/328,209.84 = 58,910.13/x
  3. Step 3: Cross multiply
    218,838.15x = 328,209.84 × 58,910.13
  4. Step 4: Simplify right side
    218,838.15x = 19,334,884,341.68
  5. Step 5: Solve for x
    x = 19,334,884,341.68/218,838.15
  6. Step 6: Final answer
    x = 88,352.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.