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Finding the Fourth Proportional to 118,367.90, 163,346.62 and 64,652.90

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Solution

The fourth proportional to 118,367.90, 163,346.62 and 64,652.90 is: 89,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,367.90 : 163,346.62 = 64,652.90 : x
  2. Step 2: Convert to fraction form
    118,367.90/163,346.62 = 64,652.90/x
  3. Step 3: Cross multiply
    118,367.90x = 163,346.62 × 64,652.90
  4. Step 4: Simplify right side
    118,367.90x = 10,560,832,688.20
  5. Step 5: Solve for x
    x = 10,560,832,688.20/118,367.90
  6. Step 6: Final answer
    x = 89,220.41

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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.