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Finding the Fourth Proportional to 109,911.30, 164,964.15 and 94,164.90

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Solution

The fourth proportional to 109,911.30, 164,964.15 and 94,164.90 is: 141,330.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,911.30 : 164,964.15 = 94,164.90 : x
  2. Step 2: Convert to fraction form
    109,911.30/164,964.15 = 94,164.90/x
  3. Step 3: Cross multiply
    109,911.30x = 164,964.15 × 94,164.90
  4. Step 4: Simplify right side
    109,911.30x = 15,533,832,688.34
  5. Step 5: Solve for x
    x = 15,533,832,688.34/109,911.30
  6. Step 6: Final answer
    x = 141,330.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.