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Finding the Fourth Proportional to 118,199.62, 163,119.58 and 64,487.58

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Solution

The fourth proportional to 118,199.62, 163,119.58 and 64,487.58 is: 88,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,199.62 : 163,119.58 = 64,487.58 : x
  2. Step 2: Convert to fraction form
    118,199.62/163,119.58 = 64,487.58/x
  3. Step 3: Cross multiply
    118,199.62x = 163,119.58 × 64,487.58
  4. Step 4: Simplify right side
    118,199.62x = 10,519,186,964.82
  5. Step 5: Solve for x
    x = 10,519,186,964.82/118,199.62
  6. Step 6: Final answer
    x = 88,995.10

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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.