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Finding the Fourth Proportional to 118,362.50, 163,340.24 and 64,647.64

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Solution

The fourth proportional to 118,362.50, 163,340.24 and 64,647.64 is: 89,213.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,362.50 : 163,340.24 = 64,647.64 : x
  2. Step 2: Convert to fraction form
    118,362.50/163,340.24 = 64,647.64/x
  3. Step 3: Cross multiply
    118,362.50x = 163,340.24 × 64,647.64
  4. Step 4: Simplify right side
    118,362.50x = 10,559,561,033.03
  5. Step 5: Solve for x
    x = 10,559,561,033.03/118,362.50
  6. Step 6: Final answer
    x = 89,213.74

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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.