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Finding the Fourth Proportional to 64,476.72, 88,970.04 and 36,176.40

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Solution

The fourth proportional to 64,476.72, 88,970.04 and 36,176.40 is: 49,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,476.72 : 88,970.04 = 36,176.40 : x
  2. Step 2: Convert to fraction form
    64,476.72/88,970.04 = 36,176.40/x
  3. Step 3: Cross multiply
    64,476.72x = 88,970.04 × 36,176.40
  4. Step 4: Simplify right side
    64,476.72x = 3,218,615,755.06
  5. Step 5: Solve for x
    x = 3,218,615,755.06/64,476.72
  6. Step 6: Final answer
    x = 49,919.04

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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.