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Finding the Fourth Proportional to 65,364.48, 90,207.48 and 37,072.02

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Solution

The fourth proportional to 65,364.48, 90,207.48 and 37,072.02 is: 51,161.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,364.48 : 90,207.48 = 37,072.02 : x
  2. Step 2: Convert to fraction form
    65,364.48/90,207.48 = 37,072.02/x
  3. Step 3: Cross multiply
    65,364.48x = 90,207.48 × 37,072.02
  4. Step 4: Simplify right side
    65,364.48x = 3,344,173,502.71
  5. Step 5: Solve for x
    x = 3,344,173,502.71/65,364.48
  6. Step 6: Final answer
    x = 51,161.94

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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.