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Finding the Fourth Proportional to 115,894.99, 159,973.14 and 73,510.93

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Solution

The fourth proportional to 115,894.99, 159,973.14 and 73,510.93 is: 101,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,894.99 : 159,973.14 = 73,510.93 : x
  2. Step 2: Convert to fraction form
    115,894.99/159,973.14 = 73,510.93/x
  3. Step 3: Cross multiply
    115,894.99x = 159,973.14 × 73,510.93
  4. Step 4: Simplify right side
    115,894.99x = 11,759,774,296.42
  5. Step 5: Solve for x
    x = 11,759,774,296.42/115,894.99
  6. Step 6: Final answer
    x = 101,469.22

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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.