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Finding the Fourth Proportional to 618,931.35, 928,389.33 and 169,651.80

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Solution

The fourth proportional to 618,931.35, 928,389.33 and 169,651.80 is: 254,475.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,931.35 : 928,389.33 = 169,651.80 : x
  2. Step 2: Convert to fraction form
    618,931.35/928,389.33 = 169,651.80/x
  3. Step 3: Cross multiply
    618,931.35x = 928,389.33 × 169,651.80
  4. Step 4: Simplify right side
    618,931.35x = 157,502,920,935.29
  5. Step 5: Solve for x
    x = 157,502,920,935.29/618,931.35
  6. Step 6: Final answer
    x = 254,475.59

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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.