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Finding the Fourth Proportional to 156,669.60, 235,004.40 and 119,344.80

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Solution

The fourth proportional to 156,669.60, 235,004.40 and 119,344.80 is: 179,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,669.60 : 235,004.40 = 119,344.80 : x
  2. Step 2: Convert to fraction form
    156,669.60/235,004.40 = 119,344.80/x
  3. Step 3: Cross multiply
    156,669.60x = 235,004.40 × 119,344.80
  4. Step 4: Simplify right side
    156,669.60x = 28,046,553,117.12
  5. Step 5: Solve for x
    x = 28,046,553,117.12/156,669.60
  6. Step 6: Final answer
    x = 179,017.20

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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.