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Finding the Fourth Proportional to 115,684.60, 173,411.70 and 53,246.20

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Solution

The fourth proportional to 115,684.60, 173,411.70 and 53,246.20 is: 79,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,684.60 : 173,411.70 = 53,246.20 : x
  2. Step 2: Convert to fraction form
    115,684.60/173,411.70 = 53,246.20/x
  3. Step 3: Cross multiply
    115,684.60x = 173,411.70 × 53,246.20
  4. Step 4: Simplify right side
    115,684.60x = 9,233,514,060.54
  5. Step 5: Solve for x
    x = 9,233,514,060.54/115,684.60
  6. Step 6: Final answer
    x = 79,816.28

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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.