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Finding the Fourth Proportional to 306,064.96, 459,123.92 and 84,448.96

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Solution

The fourth proportional to 306,064.96, 459,123.92 and 84,448.96 is: 126,680.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,064.96 : 459,123.92 = 84,448.96 : x
  2. Step 2: Convert to fraction form
    306,064.96/459,123.92 = 84,448.96/x
  3. Step 3: Cross multiply
    306,064.96x = 459,123.92 × 84,448.96
  4. Step 4: Simplify right side
    306,064.96x = 38,772,537,555.12
  5. Step 5: Solve for x
    x = 38,772,537,555.12/306,064.96
  6. Step 6: Final answer
    x = 126,680.75

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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.