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Finding the Fourth Proportional to 110,415.10, 165,622.65 and 93,307.90

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Solution

The fourth proportional to 110,415.10, 165,622.65 and 93,307.90 is: 139,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,415.10 : 165,622.65 = 93,307.90 : x
  2. Step 2: Convert to fraction form
    110,415.10/165,622.65 = 93,307.90/x
  3. Step 3: Cross multiply
    110,415.10x = 165,622.65 × 93,307.90
  4. Step 4: Simplify right side
    110,415.10x = 15,453,901,663.94
  5. Step 5: Solve for x
    x = 15,453,901,663.94/110,415.10
  6. Step 6: Final answer
    x = 139,961.85

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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.