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Finding the Fourth Proportional to 117,977.88, 162,810.90 and 64,263.34

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Solution

The fourth proportional to 117,977.88, 162,810.90 and 64,263.34 is: 88,684.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,977.88 : 162,810.90 = 64,263.34 : x
  2. Step 2: Convert to fraction form
    117,977.88/162,810.90 = 64,263.34/x
  3. Step 3: Cross multiply
    117,977.88x = 162,810.90 × 64,263.34
  4. Step 4: Simplify right side
    117,977.88x = 10,462,771,087.03
  5. Step 5: Solve for x
    x = 10,462,771,087.03/117,977.88
  6. Step 6: Final answer
    x = 88,684.18

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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.