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Finding the Fourth Proportional to 92,801.88, 128,059.50 and 54,562.98

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Solution

The fourth proportional to 92,801.88, 128,059.50 and 54,562.98 is: 75,292.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,801.88 : 128,059.50 = 54,562.98 : x
  2. Step 2: Convert to fraction form
    92,801.88/128,059.50 = 54,562.98/x
  3. Step 3: Cross multiply
    92,801.88x = 128,059.50 × 54,562.98
  4. Step 4: Simplify right side
    92,801.88x = 6,987,307,937.31
  5. Step 5: Solve for x
    x = 6,987,307,937.31/92,801.88
  6. Step 6: Final answer
    x = 75,292.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.