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Finding the Fourth Proportional to 191,497.76, 287,289.72 and 58,391.48

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Solution

The fourth proportional to 191,497.76, 287,289.72 and 58,391.48 is: 87,600.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,497.76 : 287,289.72 = 58,391.48 : x
  2. Step 2: Convert to fraction form
    191,497.76/287,289.72 = 58,391.48/x
  3. Step 3: Cross multiply
    191,497.76x = 287,289.72 × 58,391.48
  4. Step 4: Simplify right side
    191,497.76x = 16,775,271,939.59
  5. Step 5: Solve for x
    x = 16,775,271,939.59/191,497.76
  6. Step 6: Final answer
    x = 87,600.36

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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.