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Finding the Fourth Proportional to 240,582.72, 360,898.32 and 82,790.40

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Solution

The fourth proportional to 240,582.72, 360,898.32 and 82,790.40 is: 124,193.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,582.72 : 360,898.32 = 82,790.40 : x
  2. Step 2: Convert to fraction form
    240,582.72/360,898.32 = 82,790.40/x
  3. Step 3: Cross multiply
    240,582.72x = 360,898.32 × 82,790.40
  4. Step 4: Simplify right side
    240,582.72x = 29,878,916,272.13
  5. Step 5: Solve for x
    x = 29,878,916,272.13/240,582.72
  6. Step 6: Final answer
    x = 124,193.94

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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.