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Finding the Fourth Proportional to 58,722.64, 80,925.37 and 57,643.01

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Solution

The fourth proportional to 58,722.64, 80,925.37 and 57,643.01 is: 79,437.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,722.64 : 80,925.37 = 57,643.01 : x
  2. Step 2: Convert to fraction form
    58,722.64/80,925.37 = 57,643.01/x
  3. Step 3: Cross multiply
    58,722.64x = 80,925.37 × 57,643.01
  4. Step 4: Simplify right side
    58,722.64x = 4,664,781,912.16
  5. Step 5: Solve for x
    x = 4,664,781,912.16/58,722.64
  6. Step 6: Final answer
    x = 79,437.54

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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.