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Finding the Fourth Proportional to 60,342.30, 90,529.65 and 53,813.70

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Solution

The fourth proportional to 60,342.30, 90,529.65 and 53,813.70 is: 80,735.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,342.30 : 90,529.65 = 53,813.70 : x
  2. Step 2: Convert to fraction form
    60,342.30/90,529.65 = 53,813.70/x
  3. Step 3: Cross multiply
    60,342.30x = 90,529.65 × 53,813.70
  4. Step 4: Simplify right side
    60,342.30x = 4,871,735,426.21
  5. Step 5: Solve for x
    x = 4,871,735,426.21/60,342.30
  6. Step 6: Final answer
    x = 80,735.00

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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.