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Finding the Fourth Proportional to 134,676.64, 185,845.02 and 74,247.79

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Solution

The fourth proportional to 134,676.64, 185,845.02 and 74,247.79 is: 102,457.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,676.64 : 185,845.02 = 74,247.79 : x
  2. Step 2: Convert to fraction form
    134,676.64/185,845.02 = 74,247.79/x
  3. Step 3: Cross multiply
    134,676.64x = 185,845.02 × 74,247.79
  4. Step 4: Simplify right side
    134,676.64x = 13,798,582,017.51
  5. Step 5: Solve for x
    x = 13,798,582,017.51/134,676.64
  6. Step 6: Final answer
    x = 102,457.13

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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.