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Finding the Fourth Proportional to 249,588.72, 374,379.84 and 161,408.88

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Solution

The fourth proportional to 249,588.72, 374,379.84 and 161,408.88 is: 242,111.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,588.72 : 374,379.84 = 161,408.88 : x
  2. Step 2: Convert to fraction form
    249,588.72/374,379.84 = 161,408.88/x
  3. Step 3: Cross multiply
    249,588.72x = 374,379.84 × 161,408.88
  4. Step 4: Simplify right side
    249,588.72x = 60,428,230,668.98
  5. Step 5: Solve for x
    x = 60,428,230,668.98/249,588.72
  6. Step 6: Final answer
    x = 242,111.22

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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.