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Finding the Fourth Proportional to 370,023.90, 555,035.85 and 120,705.90

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Solution

The fourth proportional to 370,023.90, 555,035.85 and 120,705.90 is: 181,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,023.90 : 555,035.85 = 120,705.90 : x
  2. Step 2: Convert to fraction form
    370,023.90/555,035.85 = 120,705.90/x
  3. Step 3: Cross multiply
    370,023.90x = 555,035.85 × 120,705.90
  4. Step 4: Simplify right side
    370,023.90x = 66,996,101,806.52
  5. Step 5: Solve for x
    x = 66,996,101,806.52/370,023.90
  6. Step 6: Final answer
    x = 181,058.85

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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.