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Finding the Fourth Proportional to 118,635.24, 163,715.78 and 64,919.24

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Solution

The fourth proportional to 118,635.24, 163,715.78 and 64,919.24 is: 89,588.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,635.24 : 163,715.78 = 64,919.24 : x
  2. Step 2: Convert to fraction form
    118,635.24/163,715.78 = 64,919.24/x
  3. Step 3: Cross multiply
    118,635.24x = 163,715.78 × 64,919.24
  4. Step 4: Simplify right side
    118,635.24x = 10,628,304,013.61
  5. Step 5: Solve for x
    x = 10,628,304,013.61/118,635.24
  6. Step 6: Final answer
    x = 89,588.09

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1.5x scale

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.