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Finding the Fourth Proportional to 118,325.43, 163,310.14 and 69,925.30

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Solution

The fourth proportional to 118,325.43, 163,310.14 and 69,925.30 is: 96,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,325.43 : 163,310.14 = 69,925.30 : x
  2. Step 2: Convert to fraction form
    118,325.43/163,310.14 = 69,925.30/x
  3. Step 3: Cross multiply
    118,325.43x = 163,310.14 × 69,925.30
  4. Step 4: Simplify right side
    118,325.43x = 11,419,510,532.54
  5. Step 5: Solve for x
    x = 11,419,510,532.54/118,325.43
  6. Step 6: Final answer
    x = 96,509.35

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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.