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Finding the Fourth Proportional to 117,700.94, 162,430.44 and 63,989.58

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Solution

The fourth proportional to 117,700.94, 162,430.44 and 63,989.58 is: 88,307.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,700.94 : 162,430.44 = 63,989.58 : x
  2. Step 2: Convert to fraction form
    117,700.94/162,430.44 = 63,989.58/x
  3. Step 3: Cross multiply
    117,700.94x = 162,430.44 × 63,989.58
  4. Step 4: Simplify right side
    117,700.94x = 10,393,855,634.82
  5. Step 5: Solve for x
    x = 10,393,855,634.82/117,700.94
  6. Step 6: Final answer
    x = 88,307.33

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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.