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Finding the Fourth Proportional to 116,785.76, 161,164.53 and 66,484.76

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Solution

The fourth proportional to 116,785.76, 161,164.53 and 66,484.76 is: 91,749.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,785.76 : 161,164.53 = 66,484.76 : x
  2. Step 2: Convert to fraction form
    116,785.76/161,164.53 = 66,484.76/x
  3. Step 3: Cross multiply
    116,785.76x = 161,164.53 × 66,484.76
  4. Step 4: Simplify right side
    116,785.76x = 10,714,985,097.56
  5. Step 5: Solve for x
    x = 10,714,985,097.56/116,785.76
  6. Step 6: Final answer
    x = 91,749.07

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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.