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Finding the Fourth Proportional to 117,950.30, 162,784.86 and 70,203.80

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Solution

The fourth proportional to 117,950.30, 162,784.86 and 70,203.80 is: 96,889.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,950.30 : 162,784.86 = 70,203.80 : x
  2. Step 2: Convert to fraction form
    117,950.30/162,784.86 = 70,203.80/x
  3. Step 3: Cross multiply
    117,950.30x = 162,784.86 × 70,203.80
  4. Step 4: Simplify right side
    117,950.30x = 11,428,115,754.47
  5. Step 5: Solve for x
    x = 11,428,115,754.47/117,950.30
  6. Step 6: Final answer
    x = 96,889.25

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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.