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Finding the Fourth Proportional to 93,419.80, 140,129.70 and 56,022.10

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Solution

The fourth proportional to 93,419.80, 140,129.70 and 56,022.10 is: 84,033.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,419.80 : 140,129.70 = 56,022.10 : x
  2. Step 2: Convert to fraction form
    93,419.80/140,129.70 = 56,022.10/x
  3. Step 3: Cross multiply
    93,419.80x = 140,129.70 × 56,022.10
  4. Step 4: Simplify right side
    93,419.80x = 7,850,360,066.37
  5. Step 5: Solve for x
    x = 7,850,360,066.37/93,419.80
  6. Step 6: Final answer
    x = 84,033.15

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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.