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Finding the Fourth Proportional to 117,852.66, 162,696.93 and 90,934.74

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Solution

The fourth proportional to 117,852.66, 162,696.93 and 90,934.74 is: 125,536.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,852.66 : 162,696.93 = 90,934.74 : x
  2. Step 2: Convert to fraction form
    117,852.66/162,696.93 = 90,934.74/x
  3. Step 3: Cross multiply
    117,852.66x = 162,696.93 × 90,934.74
  4. Step 4: Simplify right side
    117,852.66x = 14,794,803,028.35
  5. Step 5: Solve for x
    x = 14,794,803,028.35/117,852.66
  6. Step 6: Final answer
    x = 125,536.44

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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.