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Finding the Fourth Proportional to 191,897.52, 287,846.28 and 51,652.50

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Solution

The fourth proportional to 191,897.52, 287,846.28 and 51,652.50 is: 77,478.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,897.52 : 287,846.28 = 51,652.50 : x
  2. Step 2: Convert to fraction form
    191,897.52/287,846.28 = 51,652.50/x
  3. Step 3: Cross multiply
    191,897.52x = 287,846.28 × 51,652.50
  4. Step 4: Simplify right side
    191,897.52x = 14,867,979,977.70
  5. Step 5: Solve for x
    x = 14,867,979,977.70/191,897.52
  6. Step 6: Final answer
    x = 77,478.75

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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.