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Finding the Fourth Proportional to 346,676.48, 520,076.16 and 130,530.56

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Solution

The fourth proportional to 346,676.48, 520,076.16 and 130,530.56 is: 195,818.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,676.48 : 520,076.16 = 130,530.56 : x
  2. Step 2: Convert to fraction form
    346,676.48/520,076.16 = 130,530.56/x
  3. Step 3: Cross multiply
    346,676.48x = 520,076.16 × 130,530.56
  4. Step 4: Simplify right side
    346,676.48x = 67,885,832,407.45
  5. Step 5: Solve for x
    x = 67,885,832,407.45/346,676.48
  6. Step 6: Final answer
    x = 195,818.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.