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Finding the Fourth Proportional to 93,287.68, 139,905.85 and 25,803.55

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Solution

The fourth proportional to 93,287.68, 139,905.85 and 25,803.55 is: 38,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,287.68 : 139,905.85 = 25,803.55 : x
  2. Step 2: Convert to fraction form
    93,287.68/139,905.85 = 25,803.55/x
  3. Step 3: Cross multiply
    93,287.68x = 139,905.85 × 25,803.55
  4. Step 4: Simplify right side
    93,287.68x = 3,610,067,595.77
  5. Step 5: Solve for x
    x = 3,610,067,595.77/93,287.68
  6. Step 6: Final answer
    x = 38,698.22

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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.