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Finding the Fourth Proportional to 351,894.92, 527,835 and 85,656.92

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Solution

The fourth proportional to 351,894.92, 527,835 and 85,656.92 is: 128,483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,894.92 : 527,835 = 85,656.92 : x
  2. Step 2: Convert to fraction form
    351,894.92/527,835 = 85,656.92/x
  3. Step 3: Cross multiply
    351,894.92x = 527,835 × 85,656.92
  4. Step 4: Simplify right side
    351,894.92x = 45,212,720,368.20
  5. Step 5: Solve for x
    x = 45,212,720,368.20/351,894.92
  6. Step 6: Final answer
    x = 128,483.58

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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.