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Finding the Fourth Proportional to 356,901.46, 535,389.10 and 120,262.60

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Solution

The fourth proportional to 356,901.46, 535,389.10 and 120,262.60 is: 180,406.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,901.46 : 535,389.10 = 120,262.60 : x
  2. Step 2: Convert to fraction form
    356,901.46/535,389.10 = 120,262.60/x
  3. Step 3: Cross multiply
    356,901.46x = 535,389.10 × 120,262.60
  4. Step 4: Simplify right side
    356,901.46x = 64,387,282,500.71
  5. Step 5: Solve for x
    x = 64,387,282,500.71/356,901.46
  6. Step 6: Final answer
    x = 180,406.33

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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.