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Finding the Fourth Proportional to 115,897.99, 159,977.28 and 73,513.93

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Solution

The fourth proportional to 115,897.99, 159,977.28 and 73,513.93 is: 101,473.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,897.99 : 159,977.28 = 73,513.93 : x
  2. Step 2: Convert to fraction form
    115,897.99/159,977.28 = 73,513.93/x
  3. Step 3: Cross multiply
    115,897.99x = 159,977.28 × 73,513.93
  4. Step 4: Simplify right side
    115,897.99x = 11,760,558,563.51
  5. Step 5: Solve for x
    x = 11,760,558,563.51/115,897.99
  6. Step 6: Final answer
    x = 101,473.36

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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.