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Finding the Fourth Proportional to 191,129.70, 286,730.64 and 63,053.31

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Solution

The fourth proportional to 191,129.70, 286,730.64 and 63,053.31 is: 94,591.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,129.70 : 286,730.64 = 63,053.31 : x
  2. Step 2: Convert to fraction form
    191,129.70/286,730.64 = 63,053.31/x
  3. Step 3: Cross multiply
    191,129.70x = 286,730.64 × 63,053.31
  4. Step 4: Simplify right side
    191,129.70x = 18,079,315,930.42
  5. Step 5: Solve for x
    x = 18,079,315,930.42/191,129.70
  6. Step 6: Final answer
    x = 94,591.87

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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.