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Finding the Fourth Proportional to 169,066.20, 253,599.30 and 42,706.20

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Solution

The fourth proportional to 169,066.20, 253,599.30 and 42,706.20 is: 64,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,066.20 : 253,599.30 = 42,706.20 : x
  2. Step 2: Convert to fraction form
    169,066.20/253,599.30 = 42,706.20/x
  3. Step 3: Cross multiply
    169,066.20x = 253,599.30 × 42,706.20
  4. Step 4: Simplify right side
    169,066.20x = 10,830,262,425.66
  5. Step 5: Solve for x
    x = 10,830,262,425.66/169,066.20
  6. Step 6: Final answer
    x = 64,059.30

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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.