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Finding the Fourth Proportional to 171,708.48, 257,650.56 and 83,038.08

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Solution

The fourth proportional to 171,708.48, 257,650.56 and 83,038.08 is: 124,599.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,708.48 : 257,650.56 = 83,038.08 : x
  2. Step 2: Convert to fraction form
    171,708.48/257,650.56 = 83,038.08/x
  3. Step 3: Cross multiply
    171,708.48x = 257,650.56 × 83,038.08
  4. Step 4: Simplify right side
    171,708.48x = 21,394,807,813.32
  5. Step 5: Solve for x
    x = 21,394,807,813.32/171,708.48
  6. Step 6: Final answer
    x = 124,599.60

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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.