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Finding the Fourth Proportional to 119,335.81, 164,684.01 and 65,624.29

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Solution

The fourth proportional to 119,335.81, 164,684.01 and 65,624.29 is: 90,561.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,335.81 : 164,684.01 = 65,624.29 : x
  2. Step 2: Convert to fraction form
    119,335.81/164,684.01 = 65,624.29/x
  3. Step 3: Cross multiply
    119,335.81x = 164,684.01 × 65,624.29
  4. Step 4: Simplify right side
    119,335.81x = 10,807,271,230.60
  5. Step 5: Solve for x
    x = 10,807,271,230.60/119,335.81
  6. Step 6: Final answer
    x = 90,561.85

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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.