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Finding the Fourth Proportional to 191,149.53, 286,545.21 and 64,701.29

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Solution

The fourth proportional to 191,149.53, 286,545.21 and 64,701.29 is: 96,991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,149.53 : 286,545.21 = 64,701.29 : x
  2. Step 2: Convert to fraction form
    191,149.53/286,545.21 = 64,701.29/x
  3. Step 3: Cross multiply
    191,149.53x = 286,545.21 × 64,701.29
  4. Step 4: Simplify right side
    191,149.53x = 18,539,844,730.32
  5. Step 5: Solve for x
    x = 18,539,844,730.32/191,149.53
  6. Step 6: Final answer
    x = 96,991.32

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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.