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Finding the Fourth Proportional to 232,707.60, 321,135.90 and 130,735.92

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Solution

The fourth proportional to 232,707.60, 321,135.90 and 130,735.92 is: 180,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,707.60 : 321,135.90 = 130,735.92 : x
  2. Step 2: Convert to fraction form
    232,707.60/321,135.90 = 130,735.92/x
  3. Step 3: Cross multiply
    232,707.60x = 321,135.90 × 130,735.92
  4. Step 4: Simplify right side
    232,707.60x = 41,983,997,331.53
  5. Step 5: Solve for x
    x = 41,983,997,331.53/232,707.60
  6. Step 6: Final answer
    x = 180,415.24

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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.