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Finding the Fourth Proportional to 144,487.80, 216,740.21 and 55,741.77

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Solution

The fourth proportional to 144,487.80, 216,740.21 and 55,741.77 is: 83,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,487.80 : 216,740.21 = 55,741.77 : x
  2. Step 2: Convert to fraction form
    144,487.80/216,740.21 = 55,741.77/x
  3. Step 3: Cross multiply
    144,487.80x = 216,740.21 × 55,741.77
  4. Step 4: Simplify right side
    144,487.80x = 12,081,482,656.86
  5. Step 5: Solve for x
    x = 12,081,482,656.86/144,487.80
  6. Step 6: Final answer
    x = 83,615.94

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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.