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Finding the Fourth Proportional to 93,400,138.62, 139,978,687.14 and 38,003,415.12

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Solution

The fourth proportional to 93,400,138.62, 139,978,687.14 and 38,003,415.12 is: 56,955,677.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,400,138.62 : 139,978,687.14 = 38,003,415.12 : x
  2. Step 2: Convert to fraction form
    93,400,138.62/139,978,687.14 = 38,003,415.12/x
  3. Step 3: Cross multiply
    93,400,138.62x = 139,978,687.14 × 38,003,415.12
  4. Step 4: Simplify right side
    93,400,138.62x = 5,319,668,155,334,025
  5. Step 5: Solve for x
    x = 5,319,668,155,334,025/93,400,138.62
  6. Step 6: Final answer
    x = 56,955,677.30

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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.