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Finding the Fourth Proportional to 93,156.48, 139,736.54 and 26,598.78

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Solution

The fourth proportional to 93,156.48, 139,736.54 and 26,598.78 is: 39,898.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,156.48 : 139,736.54 = 26,598.78 : x
  2. Step 2: Convert to fraction form
    93,156.48/139,736.54 = 26,598.78/x
  3. Step 3: Cross multiply
    93,156.48x = 139,736.54 × 26,598.78
  4. Step 4: Simplify right side
    93,156.48x = 3,716,821,551.92
  5. Step 5: Solve for x
    x = 3,716,821,551.92/93,156.48
  6. Step 6: Final answer
    x = 39,898.69

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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.