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Finding the Fourth Proportional to 117,751.62, 162,495.70 and 64,035.49

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Solution

The fourth proportional to 117,751.62, 162,495.70 and 64,035.49 is: 88,368.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,751.62 : 162,495.70 = 64,035.49 : x
  2. Step 2: Convert to fraction form
    117,751.62/162,495.70 = 64,035.49/x
  3. Step 3: Cross multiply
    117,751.62x = 162,495.70 × 64,035.49
  4. Step 4: Simplify right side
    117,751.62x = 10,405,490,959.91
  5. Step 5: Solve for x
    x = 10,405,490,959.91/117,751.62
  6. Step 6: Final answer
    x = 88,368.13

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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.