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Finding the Fourth Proportional to 96,993.03, 133,830.31 and 56,699.00

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Solution

The fourth proportional to 96,993.03, 133,830.31 and 56,699.00 is: 78,232.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,993.03 : 133,830.31 = 56,699.00 : x
  2. Step 2: Convert to fraction form
    96,993.03/133,830.31 = 56,699.00/x
  3. Step 3: Cross multiply
    96,993.03x = 133,830.31 × 56,699.00
  4. Step 4: Simplify right side
    96,993.03x = 7,588,044,971.36
  5. Step 5: Solve for x
    x = 7,588,044,971.36/96,993.03
  6. Step 6: Final answer
    x = 78,232.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.