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Finding the Fourth Proportional to 119,885.46, 165,430.15 and 66,167.02

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Solution

The fourth proportional to 119,885.46, 165,430.15 and 66,167.02 is: 91,303.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,885.46 : 165,430.15 = 66,167.02 : x
  2. Step 2: Convert to fraction form
    119,885.46/165,430.15 = 66,167.02/x
  3. Step 3: Cross multiply
    119,885.46x = 165,430.15 × 66,167.02
  4. Step 4: Simplify right side
    119,885.46x = 10,946,020,043.65
  5. Step 5: Solve for x
    x = 10,946,020,043.65/119,885.46
  6. Step 6: Final answer
    x = 91,303.98

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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.