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Finding the Fourth Proportional to 119,955.53, 165,538.69 and 66,244.20

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Solution

The fourth proportional to 119,955.53, 165,538.69 and 66,244.20 is: 91,417.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,955.53 : 165,538.69 = 66,244.20 : x
  2. Step 2: Convert to fraction form
    119,955.53/165,538.69 = 66,244.20/x
  3. Step 3: Cross multiply
    119,955.53x = 165,538.69 × 66,244.20
  4. Step 4: Simplify right side
    119,955.53x = 10,965,977,301.72
  5. Step 5: Solve for x
    x = 10,965,977,301.72/119,955.53
  6. Step 6: Final answer
    x = 91,417.02

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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.