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Finding the Fourth Proportional to 111,373.40, 166,574.10 and 99,612.20

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Solution

The fourth proportional to 111,373.40, 166,574.10 and 99,612.20 is: 148,983.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,373.40 : 166,574.10 = 99,612.20 : x
  2. Step 2: Convert to fraction form
    111,373.40/166,574.10 = 99,612.20/x
  3. Step 3: Cross multiply
    111,373.40x = 166,574.10 × 99,612.20
  4. Step 4: Simplify right side
    111,373.40x = 16,592,812,564.02
  5. Step 5: Solve for x
    x = 16,592,812,564.02/111,373.40
  6. Step 6: Final answer
    x = 148,983.62

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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.