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Finding the Fourth Proportional to 169,785.30, 234,307.91 and 93,303.82

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Solution

The fourth proportional to 169,785.30, 234,307.91 and 93,303.82 is: 128,761.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,785.30 : 234,307.91 = 93,303.82 : x
  2. Step 2: Convert to fraction form
    169,785.30/234,307.91 = 93,303.82/x
  3. Step 3: Cross multiply
    169,785.30x = 234,307.91 × 93,303.82
  4. Step 4: Simplify right side
    169,785.30x = 21,861,823,059.22
  5. Step 5: Solve for x
    x = 21,861,823,059.22/169,785.30
  6. Step 6: Final answer
    x = 128,761.58

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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.