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Finding the Fourth Proportional to 255,612.62, 352,746.81 and 148,246.31

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Solution

The fourth proportional to 255,612.62, 352,746.81 and 148,246.31 is: 204,580.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,612.62 : 352,746.81 = 148,246.31 : x
  2. Step 2: Convert to fraction form
    255,612.62/352,746.81 = 148,246.31/x
  3. Step 3: Cross multiply
    255,612.62x = 352,746.81 × 148,246.31
  4. Step 4: Simplify right side
    255,612.62x = 52,293,411,183.04
  5. Step 5: Solve for x
    x = 52,293,411,183.04/255,612.62
  6. Step 6: Final answer
    x = 204,580.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.