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Finding the Fourth Proportional to 370,472.22, 555,438.60 and 117,669.60

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Solution

The fourth proportional to 370,472.22, 555,438.60 and 117,669.60 is: 176,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,472.22 : 555,438.60 = 117,669.60 : x
  2. Step 2: Convert to fraction form
    370,472.22/555,438.60 = 117,669.60/x
  3. Step 3: Cross multiply
    370,472.22x = 555,438.60 × 117,669.60
  4. Step 4: Simplify right side
    370,472.22x = 65,358,237,886.56
  5. Step 5: Solve for x
    x = 65,358,237,886.56/370,472.22
  6. Step 6: Final answer
    x = 176,418.73

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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.