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Finding the Fourth Proportional to 94,051.80, 129,787.52 and 51,607.60

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Solution

The fourth proportional to 94,051.80, 129,787.52 and 51,607.60 is: 71,216.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,051.80 : 129,787.52 = 51,607.60 : x
  2. Step 2: Convert to fraction form
    94,051.80/129,787.52 = 51,607.60/x
  3. Step 3: Cross multiply
    94,051.80x = 129,787.52 × 51,607.60
  4. Step 4: Simplify right side
    94,051.80x = 6,698,021,834.65
  5. Step 5: Solve for x
    x = 6,698,021,834.65/94,051.80
  6. Step 6: Final answer
    x = 71,216.31

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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.