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Finding the Fourth Proportional to 171,996.10, 257,985.04 and 53,653.89

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Solution

The fourth proportional to 171,996.10, 257,985.04 and 53,653.89 is: 80,477.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,996.10 : 257,985.04 = 53,653.89 : x
  2. Step 2: Convert to fraction form
    171,996.10/257,985.04 = 53,653.89/x
  3. Step 3: Cross multiply
    171,996.10x = 257,985.04 × 53,653.89
  4. Step 4: Simplify right side
    171,996.10x = 13,841,900,312.84
  5. Step 5: Solve for x
    x = 13,841,900,312.84/171,996.10
  6. Step 6: Final answer
    x = 80,477.99

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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.