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Finding the Fourth Proportional to 156,693.60, 235,040.40 and 119,368.80

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Solution

The fourth proportional to 156,693.60, 235,040.40 and 119,368.80 is: 179,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,693.60 : 235,040.40 = 119,368.80 : x
  2. Step 2: Convert to fraction form
    156,693.60/235,040.40 = 119,368.80/x
  3. Step 3: Cross multiply
    156,693.60x = 235,040.40 × 119,368.80
  4. Step 4: Simplify right side
    156,693.60x = 28,056,490,499.52
  5. Step 5: Solve for x
    x = 28,056,490,499.52/156,693.60
  6. Step 6: Final answer
    x = 179,053.20

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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.