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Finding the Fourth Proportional to 356,733.18, 535,155.12 and 120,057.39

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Solution

The fourth proportional to 356,733.18, 535,155.12 and 120,057.39 is: 180,104.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,733.18 : 535,155.12 = 120,057.39 : x
  2. Step 2: Convert to fraction form
    356,733.18/535,155.12 = 120,057.39/x
  3. Step 3: Cross multiply
    356,733.18x = 535,155.12 × 120,057.39
  4. Step 4: Simplify right side
    356,733.18x = 64,249,326,952.34
  5. Step 5: Solve for x
    x = 64,249,326,952.34/356,733.18
  6. Step 6: Final answer
    x = 180,104.71

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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.