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Finding the Fourth Proportional to 370,221.94, 555,353.69 and 103,961.70

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Solution

The fourth proportional to 370,221.94, 555,353.69 and 103,961.70 is: 155,948.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,221.94 : 555,353.69 = 103,961.70 : x
  2. Step 2: Convert to fraction form
    370,221.94/555,353.69 = 103,961.70/x
  3. Step 3: Cross multiply
    370,221.94x = 555,353.69 × 103,961.70
  4. Step 4: Simplify right side
    370,221.94x = 57,735,510,417.10
  5. Step 5: Solve for x
    x = 57,735,510,417.10/370,221.94
  6. Step 6: Final answer
    x = 155,948.38

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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.