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Finding the Fourth Proportional to 103,697.30, 155,501.94 and 43,752.65

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Solution

The fourth proportional to 103,697.30, 155,501.94 and 43,752.65 is: 65,610.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,697.30 : 155,501.94 = 43,752.65 : x
  2. Step 2: Convert to fraction form
    103,697.30/155,501.94 = 43,752.65/x
  3. Step 3: Cross multiply
    103,697.30x = 155,501.94 × 43,752.65
  4. Step 4: Simplify right side
    103,697.30x = 6,803,621,955.14
  5. Step 5: Solve for x
    x = 6,803,621,955.14/103,697.30
  6. Step 6: Final answer
    x = 65,610.41

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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.