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Finding the Fourth Proportional to 87,323.81, 130,892.45 and 49,803.10

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Solution

The fourth proportional to 87,323.81, 130,892.45 and 49,803.10 is: 74,651.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,323.81 : 130,892.45 = 49,803.10 : x
  2. Step 2: Convert to fraction form
    87,323.81/130,892.45 = 49,803.10/x
  3. Step 3: Cross multiply
    87,323.81x = 130,892.45 × 49,803.10
  4. Step 4: Simplify right side
    87,323.81x = 6,518,849,200.35
  5. Step 5: Solve for x
    x = 6,518,849,200.35/87,323.81
  6. Step 6: Final answer
    x = 74,651.46

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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.