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Finding the Fourth Proportional to 73,332.98, 109,968.45 and 31,211.36

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Solution

The fourth proportional to 73,332.98, 109,968.45 and 31,211.36 is: 46,803.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,332.98 : 109,968.45 = 31,211.36 : x
  2. Step 2: Convert to fraction form
    73,332.98/109,968.45 = 31,211.36/x
  3. Step 3: Cross multiply
    73,332.98x = 109,968.45 × 31,211.36
  4. Step 4: Simplify right side
    73,332.98x = 3,432,264,881.59
  5. Step 5: Solve for x
    x = 3,432,264,881.59/73,332.98
  6. Step 6: Final answer
    x = 46,803.84

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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.