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Finding the Fourth Proportional to 117,751.83, 162,440.38 and 69,971.35

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Solution

The fourth proportional to 117,751.83, 162,440.38 and 69,971.35 is: 96,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,751.83 : 162,440.38 = 69,971.35 : x
  2. Step 2: Convert to fraction form
    117,751.83/162,440.38 = 69,971.35/x
  3. Step 3: Cross multiply
    117,751.83x = 162,440.38 × 69,971.35
  4. Step 4: Simplify right side
    117,751.83x = 11,366,172,683.11
  5. Step 5: Solve for x
    x = 11,366,172,683.11/117,751.83
  6. Step 6: Final answer
    x = 96,526.51

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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.