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Finding the Fourth Proportional to 56,756.54, 85,210.06 and 48,489.68

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Solution

The fourth proportional to 56,756.54, 85,210.06 and 48,489.68 is: 72,798.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,756.54 : 85,210.06 = 48,489.68 : x
  2. Step 2: Convert to fraction form
    56,756.54/85,210.06 = 48,489.68/x
  3. Step 3: Cross multiply
    56,756.54x = 85,210.06 × 48,489.68
  4. Step 4: Simplify right side
    56,756.54x = 4,131,808,542.18
  5. Step 5: Solve for x
    x = 4,131,808,542.18/56,756.54
  6. Step 6: Final answer
    x = 72,798.81

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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.