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Finding the Fourth Proportional to 143,307.48, 214,997.94 and 101,271

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Solution

The fourth proportional to 143,307.48, 214,997.94 and 101,271 is: 151,932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,307.48 : 214,997.94 = 101,271 : x
  2. Step 2: Convert to fraction form
    143,307.48/214,997.94 = 101,271/x
  3. Step 3: Cross multiply
    143,307.48x = 214,997.94 × 101,271
  4. Step 4: Simplify right side
    143,307.48x = 21,773,056,381.74
  5. Step 5: Solve for x
    x = 21,773,056,381.74/143,307.48
  6. Step 6: Final answer
    x = 151,932.45

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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.