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Finding the Fourth Proportional to 120,267.47, 165,966.63 and 66,552.45

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Solution

The fourth proportional to 120,267.47, 165,966.63 and 66,552.45 is: 91,841.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,267.47 : 165,966.63 = 66,552.45 : x
  2. Step 2: Convert to fraction form
    120,267.47/165,966.63 = 66,552.45/x
  3. Step 3: Cross multiply
    120,267.47x = 165,966.63 × 66,552.45
  4. Step 4: Simplify right side
    120,267.47x = 11,045,485,511.98
  5. Step 5: Solve for x
    x = 11,045,485,511.98/120,267.47
  6. Step 6: Final answer
    x = 91,841.01

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1.5x scale

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.