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Finding the Fourth Proportional to 189,064.52, 260,899.14 and 117,443.08

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Solution

The fourth proportional to 189,064.52, 260,899.14 and 117,443.08 is: 162,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,064.52 : 260,899.14 = 117,443.08 : x
  2. Step 2: Convert to fraction form
    189,064.52/260,899.14 = 117,443.08/x
  3. Step 3: Cross multiply
    189,064.52x = 260,899.14 × 117,443.08
  4. Step 4: Simplify right side
    189,064.52x = 30,640,798,570.95
  5. Step 5: Solve for x
    x = 30,640,798,570.95/189,064.52
  6. Step 6: Final answer
    x = 162,065.30

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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.