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Finding the Fourth Proportional to 189,017.52, 260,844.96 and 104,132.76

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Solution

The fourth proportional to 189,017.52, 260,844.96 and 104,132.76 is: 143,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,017.52 : 260,844.96 = 104,132.76 : x
  2. Step 2: Convert to fraction form
    189,017.52/260,844.96 = 104,132.76/x
  3. Step 3: Cross multiply
    189,017.52x = 260,844.96 × 104,132.76
  4. Step 4: Simplify right side
    189,017.52x = 27,162,505,616.89
  5. Step 5: Solve for x
    x = 27,162,505,616.89/189,017.52
  6. Step 6: Final answer
    x = 143,703.64

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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.