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Finding the Fourth Proportional to 118,256.64, 163,180.80 and 67,971.84

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Solution

The fourth proportional to 118,256.64, 163,180.80 and 67,971.84 is: 93,793.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,256.64 : 163,180.80 = 67,971.84 : x
  2. Step 2: Convert to fraction form
    118,256.64/163,180.80 = 67,971.84/x
  3. Step 3: Cross multiply
    118,256.64x = 163,180.80 × 67,971.84
  4. Step 4: Simplify right side
    118,256.64x = 11,091,699,228.67
  5. Step 5: Solve for x
    x = 11,091,699,228.67/118,256.64
  6. Step 6: Final answer
    x = 93,793.46

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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.