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Finding the Fourth Proportional to 118,682.66, 163,783.99 and 64,966.75

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Solution

The fourth proportional to 118,682.66, 163,783.99 and 64,966.75 is: 89,655.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,682.66 : 163,783.99 = 64,966.75 : x
  2. Step 2: Convert to fraction form
    118,682.66/163,783.99 = 64,966.75/x
  3. Step 3: Cross multiply
    118,682.66x = 163,783.99 × 64,966.75
  4. Step 4: Simplify right side
    118,682.66x = 10,640,513,532.33
  5. Step 5: Solve for x
    x = 10,640,513,532.33/118,682.66
  6. Step 6: Final answer
    x = 89,655.17

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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.