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Finding the Fourth Proportional to 118,314.84, 163,274.97 and 64,601.04

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Solution

The fourth proportional to 118,314.84, 163,274.97 and 64,601.04 is: 89,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,314.84 : 163,274.97 = 64,601.04 : x
  2. Step 2: Convert to fraction form
    118,314.84/163,274.97 = 64,601.04/x
  3. Step 3: Cross multiply
    118,314.84x = 163,274.97 × 64,601.04
  4. Step 4: Simplify right side
    118,314.84x = 10,547,732,867.97
  5. Step 5: Solve for x
    x = 10,547,732,867.97/118,314.84
  6. Step 6: Final answer
    x = 89,149.70

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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.