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Finding the Fourth Proportional to 108,928.95, 150,318.95 and 60,529.63

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Solution

The fourth proportional to 108,928.95, 150,318.95 and 60,529.63 is: 83,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,928.95 : 150,318.95 = 60,529.63 : x
  2. Step 2: Convert to fraction form
    108,928.95/150,318.95 = 60,529.63/x
  3. Step 3: Cross multiply
    108,928.95x = 150,318.95 × 60,529.63
  4. Step 4: Simplify right side
    108,928.95x = 9,098,750,501.15
  5. Step 5: Solve for x
    x = 9,098,750,501.15/108,928.95
  6. Step 6: Final answer
    x = 83,529.22

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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.