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Finding the Fourth Proportional to 72,981.65, 100,697.50 and 44,300.60

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Solution

The fourth proportional to 72,981.65, 100,697.50 and 44,300.60 is: 61,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,981.65 : 100,697.50 = 44,300.60 : x
  2. Step 2: Convert to fraction form
    72,981.65/100,697.50 = 44,300.60/x
  3. Step 3: Cross multiply
    72,981.65x = 100,697.50 × 44,300.60
  4. Step 4: Simplify right side
    72,981.65x = 4,460,959,668.50
  5. Step 5: Solve for x
    x = 4,460,959,668.50/72,981.65
  6. Step 6: Final answer
    x = 61,124.41

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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.