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Finding the Fourth Proportional to 61,219.50, 91,824.93 and 30,043.50

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Solution

The fourth proportional to 61,219.50, 91,824.93 and 30,043.50 is: 45,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,219.50 : 91,824.93 = 30,043.50 : x
  2. Step 2: Convert to fraction form
    61,219.50/91,824.93 = 30,043.50/x
  3. Step 3: Cross multiply
    61,219.50x = 91,824.93 × 30,043.50
  4. Step 4: Simplify right side
    61,219.50x = 2,758,742,284.46
  5. Step 5: Solve for x
    x = 2,758,742,284.46/61,219.50
  6. Step 6: Final answer
    x = 45,063.13

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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.