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Finding the Fourth Proportional to 370,648.44, 555,968.16 and 90,165.96

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Solution

The fourth proportional to 370,648.44, 555,968.16 and 90,165.96 is: 135,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,648.44 : 555,968.16 = 90,165.96 : x
  2. Step 2: Convert to fraction form
    370,648.44/555,968.16 = 90,165.96/x
  3. Step 3: Cross multiply
    370,648.44x = 555,968.16 × 90,165.96
  4. Step 4: Simplify right side
    370,648.44x = 50,129,402,875.83
  5. Step 5: Solve for x
    x = 50,129,402,875.83/370,648.44
  6. Step 6: Final answer
    x = 135,247.85

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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.