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Finding the Fourth Proportional to 189,014.58, 260,842.14 and 104,134.68

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Solution

The fourth proportional to 189,014.58, 260,842.14 and 104,134.68 is: 143,706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,014.58 : 260,842.14 = 104,134.68 : x
  2. Step 2: Convert to fraction form
    189,014.58/260,842.14 = 104,134.68/x
  3. Step 3: Cross multiply
    189,014.58x = 260,842.14 × 104,134.68
  4. Step 4: Simplify right side
    189,014.58x = 27,162,712,779.42
  5. Step 5: Solve for x
    x = 27,162,712,779.42/189,014.58
  6. Step 6: Final answer
    x = 143,706.97

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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.