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Finding the Fourth Proportional to 306,057.70, 459,086.55 and 166,089.70

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Solution

The fourth proportional to 306,057.70, 459,086.55 and 166,089.70 is: 249,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,057.70 : 459,086.55 = 166,089.70 : x
  2. Step 2: Convert to fraction form
    306,057.70/459,086.55 = 166,089.70/x
  3. Step 3: Cross multiply
    306,057.70x = 459,086.55 × 166,089.70
  4. Step 4: Simplify right side
    306,057.70x = 76,249,547,363.54
  5. Step 5: Solve for x
    x = 76,249,547,363.54/306,057.70
  6. Step 6: Final answer
    x = 249,134.55

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Similar ratio
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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.