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Finding the Fourth Proportional to 118,165.87, 163,070.84 and 64,450.88

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Solution

The fourth proportional to 118,165.87, 163,070.84 and 64,450.88 is: 88,943.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,165.87 : 163,070.84 = 64,450.88 : x
  2. Step 2: Convert to fraction form
    118,165.87/163,070.84 = 64,450.88/x
  3. Step 3: Cross multiply
    118,165.87x = 163,070.84 × 64,450.88
  4. Step 4: Simplify right side
    118,165.87x = 10,510,059,140.34
  5. Step 5: Solve for x
    x = 10,510,059,140.34/118,165.87
  6. Step 6: Final answer
    x = 88,943.27

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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.