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Finding the Fourth Proportional to 118,275.64, 163,224.25 and 64,563.53

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Solution

The fourth proportional to 118,275.64, 163,224.25 and 64,563.53 is: 89,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,275.64 : 163,224.25 = 64,563.53 : x
  2. Step 2: Convert to fraction form
    118,275.64/163,224.25 = 64,563.53/x
  3. Step 3: Cross multiply
    118,275.64x = 163,224.25 × 64,563.53
  4. Step 4: Simplify right side
    118,275.64x = 10,538,332,784.07
  5. Step 5: Solve for x
    x = 10,538,332,784.07/118,275.64
  6. Step 6: Final answer
    x = 89,099.78

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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.