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Finding the Fourth Proportional to 93,881.15, 140,807.01 and 30,700.75

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Solution

The fourth proportional to 93,881.15, 140,807.01 and 30,700.75 is: 46,046.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,881.15 : 140,807.01 = 30,700.75 : x
  2. Step 2: Convert to fraction form
    93,881.15/140,807.01 = 30,700.75/x
  3. Step 3: Cross multiply
    93,881.15x = 140,807.01 × 30,700.75
  4. Step 4: Simplify right side
    93,881.15x = 4,322,880,812.26
  5. Step 5: Solve for x
    x = 4,322,880,812.26/93,881.15
  6. Step 6: Final answer
    x = 46,046.31

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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.