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Finding the Fourth Proportional to 65,394.74, 90,271.86 and 44,202.71

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Solution

The fourth proportional to 65,394.74, 90,271.86 and 44,202.71 is: 61,018.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,394.74 : 90,271.86 = 44,202.71 : x
  2. Step 2: Convert to fraction form
    65,394.74/90,271.86 = 44,202.71/x
  3. Step 3: Cross multiply
    65,394.74x = 90,271.86 × 44,202.71
  4. Step 4: Simplify right side
    65,394.74x = 3,990,260,848.74
  5. Step 5: Solve for x
    x = 3,990,260,848.74/65,394.74
  6. Step 6: Final answer
    x = 61,018.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.