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Finding the Fourth Proportional to 61,761.94, 92,421.46 and 53,470.48

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Solution

The fourth proportional to 61,761.94, 92,421.46 and 53,470.48 is: 80,014.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,761.94 : 92,421.46 = 53,470.48 : x
  2. Step 2: Convert to fraction form
    61,761.94/92,421.46 = 53,470.48/x
  3. Step 3: Cross multiply
    61,761.94x = 92,421.46 × 53,470.48
  4. Step 4: Simplify right side
    61,761.94x = 4,941,819,828.50
  5. Step 5: Solve for x
    x = 4,941,819,828.50/61,761.94
  6. Step 6: Final answer
    x = 80,014.00

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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.