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Finding the Fourth Proportional to 119,688.46, 165,177.46 and 65,973.35

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Solution

The fourth proportional to 119,688.46, 165,177.46 and 65,973.35 is: 91,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,688.46 : 165,177.46 = 65,973.35 : x
  2. Step 2: Convert to fraction form
    119,688.46/165,177.46 = 65,973.35/x
  3. Step 3: Cross multiply
    119,688.46x = 165,177.46 × 65,973.35
  4. Step 4: Simplify right side
    119,688.46x = 10,897,310,876.10
  5. Step 5: Solve for x
    x = 10,897,310,876.10/119,688.46
  6. Step 6: Final answer
    x = 91,047.30

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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.