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Finding the Fourth Proportional to 83,361.52, 125,041.74 and 21,032.08

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Solution

The fourth proportional to 83,361.52, 125,041.74 and 21,032.08 is: 31,547.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,361.52 : 125,041.74 = 21,032.08 : x
  2. Step 2: Convert to fraction form
    83,361.52/125,041.74 = 21,032.08/x
  3. Step 3: Cross multiply
    83,361.52x = 125,041.74 × 21,032.08
  4. Step 4: Simplify right side
    83,361.52x = 2,629,887,879.02
  5. Step 5: Solve for x
    x = 2,629,887,879.02/83,361.52
  6. Step 6: Final answer
    x = 31,547.98

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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.