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Finding the Fourth Proportional to 245,767.20, 368,648.32 and 112,609.68

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Solution

The fourth proportional to 245,767.20, 368,648.32 and 112,609.68 is: 168,913.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,767.20 : 368,648.32 = 112,609.68 : x
  2. Step 2: Convert to fraction form
    245,767.20/368,648.32 = 112,609.68/x
  3. Step 3: Cross multiply
    245,767.20x = 368,648.32 × 112,609.68
  4. Step 4: Simplify right side
    245,767.20x = 41,513,369,347.74
  5. Step 5: Solve for x
    x = 41,513,369,347.74/245,767.20
  6. Step 6: Final answer
    x = 168,913.38

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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.