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Finding the Fourth Proportional to 116,885.68, 161,262.84 and 66,549.04

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Solution

The fourth proportional to 116,885.68, 161,262.84 and 66,549.04 is: 91,815.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,885.68 : 161,262.84 = 66,549.04 : x
  2. Step 2: Convert to fraction form
    116,885.68/161,262.84 = 66,549.04/x
  3. Step 3: Cross multiply
    116,885.68x = 161,262.84 × 66,549.04
  4. Step 4: Simplify right side
    116,885.68x = 10,731,887,189.67
  5. Step 5: Solve for x
    x = 10,731,887,189.67/116,885.68
  6. Step 6: Final answer
    x = 91,815.24

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1.5x scale

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.