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Finding the Fourth Proportional to 73,957.07, 102,060.75 and 40,423.07

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Solution

The fourth proportional to 73,957.07, 102,060.75 and 40,423.07 is: 55,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,957.07 : 102,060.75 = 40,423.07 : x
  2. Step 2: Convert to fraction form
    73,957.07/102,060.75 = 40,423.07/x
  3. Step 3: Cross multiply
    73,957.07x = 102,060.75 × 40,423.07
  4. Step 4: Simplify right side
    73,957.07x = 4,125,608,841.50
  5. Step 5: Solve for x
    x = 4,125,608,841.50/73,957.07
  6. Step 6: Final answer
    x = 55,783.83

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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.