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Finding the Fourth Proportional to 232,136.76, 320,415.15 and 136,698.81

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Solution

The fourth proportional to 232,136.76, 320,415.15 and 136,698.81 is: 188,683.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,136.76 : 320,415.15 = 136,698.81 : x
  2. Step 2: Convert to fraction form
    232,136.76/320,415.15 = 136,698.81/x
  3. Step 3: Cross multiply
    232,136.76x = 320,415.15 × 136,698.81
  4. Step 4: Simplify right side
    232,136.76x = 43,800,370,223.59
  5. Step 5: Solve for x
    x = 43,800,370,223.59/232,136.76
  6. Step 6: Final answer
    x = 188,683.48

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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.