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Finding the Fourth Proportional to 191,128.52, 286,744.62 and 58,013.12

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Solution

The fourth proportional to 191,128.52, 286,744.62 and 58,013.12 is: 87,035.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,128.52 : 286,744.62 = 58,013.12 : x
  2. Step 2: Convert to fraction form
    191,128.52/286,744.62 = 58,013.12/x
  3. Step 3: Cross multiply
    191,128.52x = 286,744.62 × 58,013.12
  4. Step 4: Simplify right side
    191,128.52x = 16,634,950,049.41
  5. Step 5: Solve for x
    x = 16,634,950,049.41/191,128.52
  6. Step 6: Final answer
    x = 87,035.41

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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.