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Finding the Fourth Proportional to 134,312.92, 201,456.30 and 40,819.48

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Solution

The fourth proportional to 134,312.92, 201,456.30 and 40,819.48 is: 61,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,312.92 : 201,456.30 = 40,819.48 : x
  2. Step 2: Convert to fraction form
    134,312.92/201,456.30 = 40,819.48/x
  3. Step 3: Cross multiply
    134,312.92x = 201,456.30 × 40,819.48
  4. Step 4: Simplify right side
    134,312.92x = 8,223,341,408.72
  5. Step 5: Solve for x
    x = 8,223,341,408.72/134,312.92
  6. Step 6: Final answer
    x = 61,225.24

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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.