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Finding the Fourth Proportional to 118,598.16, 163,388.34 and 82,724.16

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Solution

The fourth proportional to 118,598.16, 163,388.34 and 82,724.16 is: 113,966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,598.16 : 163,388.34 = 82,724.16 : x
  2. Step 2: Convert to fraction form
    118,598.16/163,388.34 = 82,724.16/x
  3. Step 3: Cross multiply
    118,598.16x = 163,388.34 × 82,724.16
  4. Step 4: Simplify right side
    118,598.16x = 13,516,163,180.29
  5. Step 5: Solve for x
    x = 13,516,163,180.29/118,598.16
  6. Step 6: Final answer
    x = 113,966.04

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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.