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Finding the Fourth Proportional to 144,361.48, 216,484.86 and 55,565.80

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Solution

The fourth proportional to 144,361.48, 216,484.86 and 55,565.80 is: 83,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,361.48 : 216,484.86 = 55,565.80 : x
  2. Step 2: Convert to fraction form
    144,361.48/216,484.86 = 55,565.80/x
  3. Step 3: Cross multiply
    144,361.48x = 216,484.86 × 55,565.80
  4. Step 4: Simplify right side
    144,361.48x = 12,029,154,433.79
  5. Step 5: Solve for x
    x = 12,029,154,433.79/144,361.48
  6. Step 6: Final answer
    x = 83,326.62

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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.