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Finding the Fourth Proportional to 191,027.70, 286,359.30 and 71,052.53

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Solution

The fourth proportional to 191,027.70, 286,359.30 and 71,052.53 is: 106,511.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,027.70 : 286,359.30 = 71,052.53 : x
  2. Step 2: Convert to fraction form
    191,027.70/286,359.30 = 71,052.53/x
  3. Step 3: Cross multiply
    191,027.70x = 286,359.30 × 71,052.53
  4. Step 4: Simplify right side
    191,027.70x = 20,346,551,322.23
  5. Step 5: Solve for x
    x = 20,346,551,322.23/191,027.70
  6. Step 6: Final answer
    x = 106,511.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.