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Finding the Fourth Proportional to 103,064.60, 154,533.72 and 43,866.56

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Solution

The fourth proportional to 103,064.60, 154,533.72 and 43,866.56 is: 65,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,064.60 : 154,533.72 = 43,866.56 : x
  2. Step 2: Convert to fraction form
    103,064.60/154,533.72 = 43,866.56/x
  3. Step 3: Cross multiply
    103,064.60x = 154,533.72 × 43,866.56
  4. Step 4: Simplify right side
    103,064.60x = 6,778,862,700.40
  5. Step 5: Solve for x
    x = 6,778,862,700.40/103,064.60
  6. Step 6: Final answer
    x = 65,772.95

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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.