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Finding the Fourth Proportional to 61,984.10, 92,866.80 and 50,830.40

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Solution

The fourth proportional to 61,984.10, 92,866.80 and 50,830.40 is: 76,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,984.10 : 92,866.80 = 50,830.40 : x
  2. Step 2: Convert to fraction form
    61,984.10/92,866.80 = 50,830.40/x
  3. Step 3: Cross multiply
    61,984.10x = 92,866.80 × 50,830.40
  4. Step 4: Simplify right side
    61,984.10x = 4,720,456,590.72
  5. Step 5: Solve for x
    x = 4,720,456,590.72/61,984.10
  6. Step 6: Final answer
    x = 76,155.93

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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.