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Finding the Fourth Proportional to 424,164.80, 636,199.32 and 108,624.08

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Solution

The fourth proportional to 424,164.80, 636,199.32 and 108,624.08 is: 162,923.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,164.80 : 636,199.32 = 108,624.08 : x
  2. Step 2: Convert to fraction form
    424,164.80/636,199.32 = 108,624.08/x
  3. Step 3: Cross multiply
    424,164.80x = 636,199.32 × 108,624.08
  4. Step 4: Simplify right side
    424,164.80x = 69,106,565,831.63
  5. Step 5: Solve for x
    x = 69,106,565,831.63/424,164.80
  6. Step 6: Final answer
    x = 162,923.86

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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.