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Finding the Fourth Proportional to 171,996.17, 257,985.14 and 53,653.95

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Solution

The fourth proportional to 171,996.17, 257,985.14 and 53,653.95 is: 80,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,996.17 : 257,985.14 = 53,653.95 : x
  2. Step 2: Convert to fraction form
    171,996.17/257,985.14 = 53,653.95/x
  3. Step 3: Cross multiply
    171,996.17x = 257,985.14 × 53,653.95
  4. Step 4: Simplify right side
    171,996.17x = 13,841,921,534.03
  5. Step 5: Solve for x
    x = 13,841,921,534.03/171,996.17
  6. Step 6: Final answer
    x = 80,478.08

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1.5x scale

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.