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Finding the Fourth Proportional to 220,300.95, 330,458.61 and 104,870.40

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Solution

The fourth proportional to 220,300.95, 330,458.61 and 104,870.40 is: 157,309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,300.95 : 330,458.61 = 104,870.40 : x
  2. Step 2: Convert to fraction form
    220,300.95/330,458.61 = 104,870.40/x
  3. Step 3: Cross multiply
    220,300.95x = 330,458.61 × 104,870.40
  4. Step 4: Simplify right side
    220,300.95x = 34,655,326,614.14
  5. Step 5: Solve for x
    x = 34,655,326,614.14/220,300.95
  6. Step 6: Final answer
    x = 157,309.02

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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.