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Finding the Fourth Proportional to 144,336.51, 216,505.04 and 55,631.79

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Solution

The fourth proportional to 144,336.51, 216,505.04 and 55,631.79 is: 83,447.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,336.51 : 216,505.04 = 55,631.79 : x
  2. Step 2: Convert to fraction form
    144,336.51/216,505.04 = 55,631.79/x
  3. Step 3: Cross multiply
    144,336.51x = 216,505.04 × 55,631.79
  4. Step 4: Simplify right side
    144,336.51x = 12,044,562,641.06
  5. Step 5: Solve for x
    x = 12,044,562,641.06/144,336.51
  6. Step 6: Final answer
    x = 83,447.79

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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.