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Finding the Fourth Proportional to 375,115.87, 562,638.86 and 105,269.23

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Solution

The fourth proportional to 375,115.87, 562,638.86 and 105,269.23 is: 157,894.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,115.87 : 562,638.86 = 105,269.23 : x
  2. Step 2: Convert to fraction form
    375,115.87/562,638.86 = 105,269.23/x
  3. Step 3: Cross multiply
    375,115.87x = 562,638.86 × 105,269.23
  4. Step 4: Simplify right side
    375,115.87x = 59,228,559,560.28
  5. Step 5: Solve for x
    x = 59,228,559,560.28/375,115.87
  6. Step 6: Final answer
    x = 157,894.04

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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.