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Finding the Fourth Proportional to 55,457.20, 83,068.80 and 36,746.20

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Solution

The fourth proportional to 55,457.20, 83,068.80 and 36,746.20 is: 55,041.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,457.20 : 83,068.80 = 36,746.20 : x
  2. Step 2: Convert to fraction form
    55,457.20/83,068.80 = 36,746.20/x
  3. Step 3: Cross multiply
    55,457.20x = 83,068.80 × 36,746.20
  4. Step 4: Simplify right side
    55,457.20x = 3,052,462,738.56
  5. Step 5: Solve for x
    x = 3,052,462,738.56/55,457.20
  6. Step 6: Final answer
    x = 55,041.78

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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.