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Finding the Fourth Proportional to 61,783.80, 92,675.68 and 53,439.01

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Solution

The fourth proportional to 61,783.80, 92,675.68 and 53,439.01 is: 80,158.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,783.80 : 92,675.68 = 53,439.01 : x
  2. Step 2: Convert to fraction form
    61,783.80/92,675.68 = 53,439.01/x
  3. Step 3: Cross multiply
    61,783.80x = 92,675.68 × 53,439.01
  4. Step 4: Simplify right side
    61,783.80x = 4,952,496,590.28
  5. Step 5: Solve for x
    x = 4,952,496,590.28/61,783.80
  6. Step 6: Final answer
    x = 80,158.50

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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.