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Finding the Fourth Proportional to 157,689.84, 236,537.20 and 52,508.88

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Solution

The fourth proportional to 157,689.84, 236,537.20 and 52,508.88 is: 78,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,689.84 : 236,537.20 = 52,508.88 : x
  2. Step 2: Convert to fraction form
    157,689.84/236,537.20 = 52,508.88/x
  3. Step 3: Cross multiply
    157,689.84x = 236,537.20 × 52,508.88
  4. Step 4: Simplify right side
    157,689.84x = 12,420,303,450.34
  5. Step 5: Solve for x
    x = 12,420,303,450.34/157,689.84
  6. Step 6: Final answer
    x = 78,764.13

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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.