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Finding the Fourth Proportional to 356,700.20, 535,105.66 and 120,024.42

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Solution

The fourth proportional to 356,700.20, 535,105.66 and 120,024.42 is: 180,055.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,700.20 : 535,105.66 = 120,024.42 : x
  2. Step 2: Convert to fraction form
    356,700.20/535,105.66 = 120,024.42/x
  3. Step 3: Cross multiply
    356,700.20x = 535,105.66 × 120,024.42
  4. Step 4: Simplify right side
    356,700.20x = 64,225,746,480.22
  5. Step 5: Solve for x
    x = 64,225,746,480.22/356,700.20
  6. Step 6: Final answer
    x = 180,055.26

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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.