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Finding the Fourth Proportional to 171,611.80, 257,417.70 and 141,868.60

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Solution

The fourth proportional to 171,611.80, 257,417.70 and 141,868.60 is: 212,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,611.80 : 257,417.70 = 141,868.60 : x
  2. Step 2: Convert to fraction form
    171,611.80/257,417.70 = 141,868.60/x
  3. Step 3: Cross multiply
    171,611.80x = 257,417.70 × 141,868.60
  4. Step 4: Simplify right side
    171,611.80x = 36,519,488,714.22
  5. Step 5: Solve for x
    x = 36,519,488,714.22/171,611.80
  6. Step 6: Final answer
    x = 212,802.90

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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.