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Finding the Fourth Proportional to 118,171.01, 163,076.50 and 64,457.18

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Solution

The fourth proportional to 118,171.01, 163,076.50 and 64,457.18 is: 88,951.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,171.01 : 163,076.50 = 64,457.18 : x
  2. Step 2: Convert to fraction form
    118,171.01/163,076.50 = 64,457.18/x
  3. Step 3: Cross multiply
    118,171.01x = 163,076.50 × 64,457.18
  4. Step 4: Simplify right side
    118,171.01x = 10,511,450,337.74
  5. Step 5: Solve for x
    x = 10,511,450,337.74/118,171.01
  6. Step 6: Final answer
    x = 88,951.18

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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.