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Finding the Fourth Proportional to 346,696.70, 520,045.05 and 84,040.70

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Solution

The fourth proportional to 346,696.70, 520,045.05 and 84,040.70 is: 126,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,696.70 : 520,045.05 = 84,040.70 : x
  2. Step 2: Convert to fraction form
    346,696.70/520,045.05 = 84,040.70/x
  3. Step 3: Cross multiply
    346,696.70x = 520,045.05 × 84,040.70
  4. Step 4: Simplify right side
    346,696.70x = 43,704,950,033.54
  5. Step 5: Solve for x
    x = 43,704,950,033.54/346,696.70
  6. Step 6: Final answer
    x = 126,061.05

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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.