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Finding the Fourth Proportional to 191,035.29, 286,477.87 and 64,640.73

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Solution

The fourth proportional to 191,035.29, 286,477.87 and 64,640.73 is: 96,935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,035.29 : 286,477.87 = 64,640.73 : x
  2. Step 2: Convert to fraction form
    191,035.29/286,477.87 = 64,640.73/x
  3. Step 3: Cross multiply
    191,035.29x = 286,477.87 × 64,640.73
  4. Step 4: Simplify right side
    191,035.29x = 18,518,136,890.05
  5. Step 5: Solve for x
    x = 18,518,136,890.05/191,035.29
  6. Step 6: Final answer
    x = 96,935.69

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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.