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Finding the Fourth Proportional to 325,155.66, 487,683.18 and 125,446.92

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Solution

The fourth proportional to 325,155.66, 487,683.18 and 125,446.92 is: 188,150.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,155.66 : 487,683.18 = 125,446.92 : x
  2. Step 2: Convert to fraction form
    325,155.66/487,683.18 = 125,446.92/x
  3. Step 3: Cross multiply
    325,155.66x = 487,683.18 × 125,446.92
  4. Step 4: Simplify right side
    325,155.66x = 61,178,352,866.81
  5. Step 5: Solve for x
    x = 61,178,352,866.81/325,155.66
  6. Step 6: Final answer
    x = 188,150.97

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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.