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Finding the Fourth Proportional to 216,840.80, 325,074.13 and 104,366.30

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Solution

The fourth proportional to 216,840.80, 325,074.13 and 104,366.30 is: 156,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,840.80 : 325,074.13 = 104,366.30 : x
  2. Step 2: Convert to fraction form
    216,840.80/325,074.13 = 104,366.30/x
  3. Step 3: Cross multiply
    216,840.80x = 325,074.13 × 104,366.30
  4. Step 4: Simplify right side
    216,840.80x = 33,926,782,287.53
  5. Step 5: Solve for x
    x = 33,926,782,287.53/216,840.80
  6. Step 6: Final answer
    x = 156,459.40

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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.