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Finding the Fourth Proportional to 117,677.00, 162,485.90 and 72,376.03

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Solution

The fourth proportional to 117,677.00, 162,485.90 and 72,376.03 is: 99,935.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,677.00 : 162,485.90 = 72,376.03 : x
  2. Step 2: Convert to fraction form
    117,677.00/162,485.90 = 72,376.03/x
  3. Step 3: Cross multiply
    117,677.00x = 162,485.90 × 72,376.03
  4. Step 4: Simplify right side
    117,677.00x = 11,760,084,485.61
  5. Step 5: Solve for x
    x = 11,760,084,485.61/117,677.00
  6. Step 6: Final answer
    x = 99,935.28

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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.