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Finding the Fourth Proportional to 234,831.44, 352,385.40 and 87,191.12

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Solution

The fourth proportional to 234,831.44, 352,385.40 and 87,191.12 is: 130,838.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,831.44 : 352,385.40 = 87,191.12 : x
  2. Step 2: Convert to fraction form
    234,831.44/352,385.40 = 87,191.12/x
  3. Step 3: Cross multiply
    234,831.44x = 352,385.40 × 87,191.12
  4. Step 4: Simplify right side
    234,831.44x = 30,724,877,697.65
  5. Step 5: Solve for x
    x = 30,724,877,697.65/234,831.44
  6. Step 6: Final answer
    x = 130,838.01

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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.