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Finding the Fourth Proportional to 79,772.02, 119,699.71 and 51,684.77

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Solution

The fourth proportional to 79,772.02, 119,699.71 and 51,684.77 is: 77,554.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,772.02 : 119,699.71 = 51,684.77 : x
  2. Step 2: Convert to fraction form
    79,772.02/119,699.71 = 51,684.77/x
  3. Step 3: Cross multiply
    79,772.02x = 119,699.71 × 51,684.77
  4. Step 4: Simplify right side
    79,772.02x = 6,186,652,150.45
  5. Step 5: Solve for x
    x = 6,186,652,150.45/79,772.02
  6. Step 6: Final answer
    x = 77,554.16

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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.