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Finding the Fourth Proportional to 103,798.88, 155,747.46 and 61,762.04

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Solution

The fourth proportional to 103,798.88, 155,747.46 and 61,762.04 is: 92,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,798.88 : 155,747.46 = 61,762.04 : x
  2. Step 2: Convert to fraction form
    103,798.88/155,747.46 = 61,762.04/x
  3. Step 3: Cross multiply
    103,798.88x = 155,747.46 × 61,762.04
  4. Step 4: Simplify right side
    103,798.88x = 9,619,280,854.42
  5. Step 5: Solve for x
    x = 9,619,280,854.42/103,798.88
  6. Step 6: Final answer
    x = 92,672.30

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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.