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Finding the Fourth Proportional to 117,699.01, 162,412.49 and 69,943.16

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Solution

The fourth proportional to 117,699.01, 162,412.49 and 69,943.16 is: 96,514.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,699.01 : 162,412.49 = 69,943.16 : x
  2. Step 2: Convert to fraction form
    117,699.01/162,412.49 = 69,943.16/x
  3. Step 3: Cross multiply
    117,699.01x = 162,412.49 × 69,943.16
  4. Step 4: Simplify right side
    117,699.01x = 11,359,643,354.96
  5. Step 5: Solve for x
    x = 11,359,643,354.96/117,699.01
  6. Step 6: Final answer
    x = 96,514.35

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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.