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Finding the Fourth Proportional to 342,923.64, 514,717.47 and 165,555.15

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Solution

The fourth proportional to 342,923.64, 514,717.47 and 165,555.15 is: 248,493.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,923.64 : 514,717.47 = 165,555.15 : x
  2. Step 2: Convert to fraction form
    342,923.64/514,717.47 = 165,555.15/x
  3. Step 3: Cross multiply
    342,923.64x = 514,717.47 × 165,555.15
  4. Step 4: Simplify right side
    342,923.64x = 85,214,127,953.47
  5. Step 5: Solve for x
    x = 85,214,127,953.47/342,923.64
  6. Step 6: Final answer
    x = 248,493.01

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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.