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Finding the Fourth Proportional to 118,315.44, 163,289.63 and 67,340.57

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Solution

The fourth proportional to 118,315.44, 163,289.63 and 67,340.57 is: 92,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,315.44 : 163,289.63 = 67,340.57 : x
  2. Step 2: Convert to fraction form
    118,315.44/163,289.63 = 67,340.57/x
  3. Step 3: Cross multiply
    118,315.44x = 163,289.63 × 67,340.57
  4. Step 4: Simplify right side
    118,315.44x = 10,996,015,606.14
  5. Step 5: Solve for x
    x = 10,996,015,606.14/118,315.44
  6. Step 6: Final answer
    x = 92,938.13

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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.