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Finding the Fourth Proportional to 216,848.80, 325,329.90 and 83,733.40

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Solution

The fourth proportional to 216,848.80, 325,329.90 and 83,733.40 is: 125,621.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,848.80 : 325,329.90 = 83,733.40 : x
  2. Step 2: Convert to fraction form
    216,848.80/325,329.90 = 83,733.40/x
  3. Step 3: Cross multiply
    216,848.80x = 325,329.90 × 83,733.40
  4. Step 4: Simplify right side
    216,848.80x = 27,240,978,648.66
  5. Step 5: Solve for x
    x = 27,240,978,648.66/216,848.80
  6. Step 6: Final answer
    x = 125,621.99

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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.