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Finding the Fourth Proportional to 116,956.40, 161,390.52 and 65,952.77

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Solution

The fourth proportional to 116,956.40, 161,390.52 and 65,952.77 is: 91,009.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,956.40 : 161,390.52 = 65,952.77 : x
  2. Step 2: Convert to fraction form
    116,956.40/161,390.52 = 65,952.77/x
  3. Step 3: Cross multiply
    116,956.40x = 161,390.52 × 65,952.77
  4. Step 4: Simplify right side
    116,956.40x = 10,644,151,038.79
  5. Step 5: Solve for x
    x = 10,644,151,038.79/116,956.40
  6. Step 6: Final answer
    x = 91,009.57

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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.