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Finding the Fourth Proportional to 95,346, 131,601.66 and 65,143.53

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Solution

The fourth proportional to 95,346, 131,601.66 and 65,143.53 is: 89,914.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,346 : 131,601.66 = 65,143.53 : x
  2. Step 2: Convert to fraction form
    95,346/131,601.66 = 65,143.53/x
  3. Step 3: Cross multiply
    95,346x = 131,601.66 × 65,143.53
  4. Step 4: Simplify right side
    95,346x = 8,572,996,686.26
  5. Step 5: Solve for x
    x = 8,572,996,686.26/95,346
  6. Step 6: Final answer
    x = 89,914.59

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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.