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Finding the Fourth Proportional to 119,645.58, 165,114.68 and 68,667.63

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Solution

The fourth proportional to 119,645.58, 165,114.68 and 68,667.63 is: 94,763.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,645.58 : 165,114.68 = 68,667.63 : x
  2. Step 2: Convert to fraction form
    119,645.58/165,114.68 = 68,667.63/x
  3. Step 3: Cross multiply
    119,645.58x = 165,114.68 × 68,667.63
  4. Step 4: Simplify right side
    119,645.58x = 11,338,033,753.81
  5. Step 5: Solve for x
    x = 11,338,033,753.81/119,645.58
  6. Step 6: Final answer
    x = 94,763.50

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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.