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Finding the Fourth Proportional to 43,281, 64,539.64 and 41,739.16

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Solution

The fourth proportional to 43,281, 64,539.64 and 41,739.16 is: 62,240.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,281 : 64,539.64 = 41,739.16 : x
  2. Step 2: Convert to fraction form
    43,281/64,539.64 = 41,739.16/x
  3. Step 3: Cross multiply
    43,281x = 64,539.64 × 41,739.16
  4. Step 4: Simplify right side
    43,281x = 2,693,830,360.30
  5. Step 5: Solve for x
    x = 2,693,830,360.30/43,281
  6. Step 6: Final answer
    x = 62,240.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.