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Finding the Fourth Proportional to 110,603.96, 165,800.82 and 70,510.40

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Solution

The fourth proportional to 110,603.96, 165,800.82 and 70,510.40 is: 105,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,603.96 : 165,800.82 = 70,510.40 : x
  2. Step 2: Convert to fraction form
    110,603.96/165,800.82 = 70,510.40/x
  3. Step 3: Cross multiply
    110,603.96x = 165,800.82 × 70,510.40
  4. Step 4: Simplify right side
    110,603.96x = 11,690,681,309.52
  5. Step 5: Solve for x
    x = 11,690,681,309.52/110,603.96
  6. Step 6: Final answer
    x = 105,698.58

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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.