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Finding the Fourth Proportional to 93,747.80, 129,368.77 and 53,474.60

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Solution

The fourth proportional to 93,747.80, 129,368.77 and 53,474.60 is: 73,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,747.80 : 129,368.77 = 53,474.60 : x
  2. Step 2: Convert to fraction form
    93,747.80/129,368.77 = 53,474.60/x
  3. Step 3: Cross multiply
    93,747.80x = 129,368.77 × 53,474.60
  4. Step 4: Simplify right side
    93,747.80x = 6,917,943,228.24
  5. Step 5: Solve for x
    x = 6,917,943,228.24/93,747.80
  6. Step 6: Final answer
    x = 73,793.13

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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.