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Finding the Fourth Proportional to 306,066.70, 459,100.05 and 106,320.70

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Solution

The fourth proportional to 306,066.70, 459,100.05 and 106,320.70 is: 159,481.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,066.70 : 459,100.05 = 106,320.70 : x
  2. Step 2: Convert to fraction form
    306,066.70/459,100.05 = 106,320.70/x
  3. Step 3: Cross multiply
    306,066.70x = 459,100.05 × 106,320.70
  4. Step 4: Simplify right side
    306,066.70x = 48,811,838,686.04
  5. Step 5: Solve for x
    x = 48,811,838,686.04/306,066.70
  6. Step 6: Final answer
    x = 159,481.05

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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.