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Finding the Fourth Proportional to 119,334.80, 164,681.16 and 68,358.80

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Solution

The fourth proportional to 119,334.80, 164,681.16 and 68,358.80 is: 94,334.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,334.80 : 164,681.16 = 68,358.80 : x
  2. Step 2: Convert to fraction form
    119,334.80/164,681.16 = 68,358.80/x
  3. Step 3: Cross multiply
    119,334.80x = 164,681.16 × 68,358.80
  4. Step 4: Simplify right side
    119,334.80x = 11,257,406,480.21
  5. Step 5: Solve for x
    x = 11,257,406,480.21/119,334.80
  6. Step 6: Final answer
    x = 94,334.65

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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.