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Finding the Fourth Proportional to 118,479.24, 163,475.01 and 68,178.24

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Solution

The fourth proportional to 118,479.24, 163,475.01 and 68,178.24 is: 94,070.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,479.24 : 163,475.01 = 68,178.24 : x
  2. Step 2: Convert to fraction form
    118,479.24/163,475.01 = 68,178.24/x
  3. Step 3: Cross multiply
    118,479.24x = 163,475.01 × 68,178.24
  4. Step 4: Simplify right side
    118,479.24x = 11,145,438,465.78
  5. Step 5: Solve for x
    x = 11,145,438,465.78/118,479.24
  6. Step 6: Final answer
    x = 94,070.81

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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.