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Finding the Fourth Proportional to 346,957.80, 520,091.10 and 159,642.60

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Solution

The fourth proportional to 346,957.80, 520,091.10 and 159,642.60 is: 239,304.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,957.80 : 520,091.10 = 159,642.60 : x
  2. Step 2: Convert to fraction form
    346,957.80/520,091.10 = 159,642.60/x
  3. Step 3: Cross multiply
    346,957.80x = 520,091.10 × 159,642.60
  4. Step 4: Simplify right side
    346,957.80x = 83,028,695,440.86
  5. Step 5: Solve for x
    x = 83,028,695,440.86/346,957.80
  6. Step 6: Final answer
    x = 239,304.88

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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.