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Finding the Fourth Proportional to 119,292.66, 164,620.59 and 65,577.72

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Solution

The fourth proportional to 119,292.66, 164,620.59 and 65,577.72 is: 90,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,292.66 : 164,620.59 = 65,577.72 : x
  2. Step 2: Convert to fraction form
    119,292.66/164,620.59 = 65,577.72/x
  3. Step 3: Cross multiply
    119,292.66x = 164,620.59 × 65,577.72
  4. Step 4: Simplify right side
    119,292.66x = 10,795,442,957.25
  5. Step 5: Solve for x
    x = 10,795,442,957.25/119,292.66
  6. Step 6: Final answer
    x = 90,495.45

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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.