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Finding the Fourth Proportional to 156,864.40, 235,037.40 and 133,536.40

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Solution

The fourth proportional to 156,864.40, 235,037.40 and 133,536.40 is: 200,083.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,864.40 : 235,037.40 = 133,536.40 : x
  2. Step 2: Convert to fraction form
    156,864.40/235,037.40 = 133,536.40/x
  3. Step 3: Cross multiply
    156,864.40x = 235,037.40 × 133,536.40
  4. Step 4: Simplify right side
    156,864.40x = 31,386,048,261.36
  5. Step 5: Solve for x
    x = 31,386,048,261.36/156,864.40
  6. Step 6: Final answer
    x = 200,083.95

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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.