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Finding the Fourth Proportional to 118,293.53, 163,247.54 and 64,580.81

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Solution

The fourth proportional to 118,293.53, 163,247.54 and 64,580.81 is: 89,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,293.53 : 163,247.54 = 64,580.81 : x
  2. Step 2: Convert to fraction form
    118,293.53/163,247.54 = 64,580.81/x
  3. Step 3: Cross multiply
    118,293.53x = 163,247.54 × 64,580.81
  4. Step 4: Simplify right side
    118,293.53x = 10,542,657,224.57
  5. Step 5: Solve for x
    x = 10,542,657,224.57/118,293.53
  6. Step 6: Final answer
    x = 89,122.86

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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.