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Finding the Fourth Proportional to 93,218.32, 139,803.99 and 26,658.82

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Solution

The fourth proportional to 93,218.32, 139,803.99 and 26,658.82 is: 39,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,218.32 : 139,803.99 = 26,658.82 : x
  2. Step 2: Convert to fraction form
    93,218.32/139,803.99 = 26,658.82/x
  3. Step 3: Cross multiply
    93,218.32x = 139,803.99 × 26,658.82
  4. Step 4: Simplify right side
    93,218.32x = 3,727,009,404.69
  5. Step 5: Solve for x
    x = 3,727,009,404.69/93,218.32
  6. Step 6: Final answer
    x = 39,981.51

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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.