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Finding the Fourth Proportional to 618,783.84, 928,176.57 and 169,508.70

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Solution

The fourth proportional to 618,783.84, 928,176.57 and 169,508.70 is: 254,263.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,783.84 : 928,176.57 = 169,508.70 : x
  2. Step 2: Convert to fraction form
    618,783.84/928,176.57 = 169,508.70/x
  3. Step 3: Cross multiply
    618,783.84x = 928,176.57 × 169,508.70
  4. Step 4: Simplify right side
    618,783.84x = 157,334,003,751.16
  5. Step 5: Solve for x
    x = 157,334,003,751.16/618,783.84
  6. Step 6: Final answer
    x = 254,263.27

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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.