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Finding the Fourth Proportional to 93,287.18, 139,905.10 and 25,803.04

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Solution

The fourth proportional to 93,287.18, 139,905.10 and 25,803.04 is: 38,697.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,287.18 : 139,905.10 = 25,803.04 : x
  2. Step 2: Convert to fraction form
    93,287.18/139,905.10 = 25,803.04/x
  3. Step 3: Cross multiply
    93,287.18x = 139,905.10 × 25,803.04
  4. Step 4: Simplify right side
    93,287.18x = 3,609,976,891.50
  5. Step 5: Solve for x
    x = 3,609,976,891.50/93,287.18
  6. Step 6: Final answer
    x = 38,697.46

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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.