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Finding the Fourth Proportional to 118,670.91, 163,733.46 and 67,665.04

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Solution

The fourth proportional to 118,670.91, 163,733.46 and 67,665.04 is: 93,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,670.91 : 163,733.46 = 67,665.04 : x
  2. Step 2: Convert to fraction form
    118,670.91/163,733.46 = 67,665.04/x
  3. Step 3: Cross multiply
    118,670.91x = 163,733.46 × 67,665.04
  4. Step 4: Simplify right side
    118,670.91x = 11,079,030,301.57
  5. Step 5: Solve for x
    x = 11,079,030,301.57/118,670.91
  6. Step 6: Final answer
    x = 93,359.28

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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.