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Finding the Fourth Proportional to 93,622.47, 140,404.53 and 31,278.39

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Solution

The fourth proportional to 93,622.47, 140,404.53 and 31,278.39 is: 46,907.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,622.47 : 140,404.53 = 31,278.39 : x
  2. Step 2: Convert to fraction form
    93,622.47/140,404.53 = 31,278.39/x
  3. Step 3: Cross multiply
    93,622.47x = 140,404.53 × 31,278.39
  4. Step 4: Simplify right side
    93,622.47x = 4,391,627,647.11
  5. Step 5: Solve for x
    x = 4,391,627,647.11/93,622.47
  6. Step 6: Final answer
    x = 46,907.84

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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.