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Finding the Fourth Proportional to 143,957.16, 215,936.10 and 73,798.20

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Solution

The fourth proportional to 143,957.16, 215,936.10 and 73,798.20 is: 110,697.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,957.16 : 215,936.10 = 73,798.20 : x
  2. Step 2: Convert to fraction form
    143,957.16/215,936.10 = 73,798.20/x
  3. Step 3: Cross multiply
    143,957.16x = 215,936.10 × 73,798.20
  4. Step 4: Simplify right side
    143,957.16x = 15,935,695,495.02
  5. Step 5: Solve for x
    x = 15,935,695,495.02/143,957.16
  6. Step 6: Final answer
    x = 110,697.48

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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.