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Finding the Fourth Proportional to 56,160, 77,509.44 and 33,816.96

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Solution

The fourth proportional to 56,160, 77,509.44 and 33,816.96 is: 46,672.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,160 : 77,509.44 = 33,816.96 : x
  2. Step 2: Convert to fraction form
    56,160/77,509.44 = 33,816.96/x
  3. Step 3: Cross multiply
    56,160x = 77,509.44 × 33,816.96
  4. Step 4: Simplify right side
    56,160x = 2,621,133,632.10
  5. Step 5: Solve for x
    x = 2,621,133,632.10/56,160
  6. Step 6: Final answer
    x = 46,672.61

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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.