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Finding the Fourth Proportional to 155,699.01, 214,899.60 and 101,952.81

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Solution

The fourth proportional to 155,699.01, 214,899.60 and 101,952.81 is: 140,717.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,699.01 : 214,899.60 = 101,952.81 : x
  2. Step 2: Convert to fraction form
    155,699.01/214,899.60 = 101,952.81/x
  3. Step 3: Cross multiply
    155,699.01x = 214,899.60 × 101,952.81
  4. Step 4: Simplify right side
    155,699.01x = 21,909,618,087.88
  5. Step 5: Solve for x
    x = 21,909,618,087.88/155,699.01
  6. Step 6: Final answer
    x = 140,717.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.