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Finding the Fourth Proportional to 159,710.91, 220,400.16 and 88,090.77

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Solution

The fourth proportional to 159,710.91, 220,400.16 and 88,090.77 is: 121,564.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,710.91 : 220,400.16 = 88,090.77 : x
  2. Step 2: Convert to fraction form
    159,710.91/220,400.16 = 88,090.77/x
  3. Step 3: Cross multiply
    159,710.91x = 220,400.16 × 88,090.77
  4. Step 4: Simplify right side
    159,710.91x = 19,415,219,182.32
  5. Step 5: Solve for x
    x = 19,415,219,182.32/159,710.91
  6. Step 6: Final answer
    x = 121,564.76

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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.