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Finding the Fourth Proportional to 171,537.95, 257,307.54 and 121,466.59

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Solution

The fourth proportional to 171,537.95, 257,307.54 and 121,466.59 is: 182,200.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,537.95 : 257,307.54 = 121,466.59 : x
  2. Step 2: Convert to fraction form
    171,537.95/257,307.54 = 121,466.59/x
  3. Step 3: Cross multiply
    171,537.95x = 257,307.54 × 121,466.59
  4. Step 4: Simplify right side
    171,537.95x = 31,254,268,366.32
  5. Step 5: Solve for x
    x = 31,254,268,366.32/171,537.95
  6. Step 6: Final answer
    x = 182,200.31

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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.