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Finding the Fourth Proportional to 189,057.90, 260,817.93 and 112,534.11

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Solution

The fourth proportional to 189,057.90, 260,817.93 and 112,534.11 is: 155,248.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,057.90 : 260,817.93 = 112,534.11 : x
  2. Step 2: Convert to fraction form
    189,057.90/260,817.93 = 112,534.11/x
  3. Step 3: Cross multiply
    189,057.90x = 260,817.93 × 112,534.11
  4. Step 4: Simplify right side
    189,057.90x = 29,350,913,624.59
  5. Step 5: Solve for x
    x = 29,350,913,624.59/189,057.90
  6. Step 6: Final answer
    x = 155,248.28

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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.