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Finding the Fourth Proportional to 526,821.54, 790,204.64 and 147,768.54

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Solution

The fourth proportional to 526,821.54, 790,204.64 and 147,768.54 is: 221,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,821.54 : 790,204.64 = 147,768.54 : x
  2. Step 2: Convert to fraction form
    526,821.54/790,204.64 = 147,768.54/x
  3. Step 3: Cross multiply
    526,821.54x = 790,204.64 × 147,768.54
  4. Step 4: Simplify right side
    526,821.54x = 116,767,385,215.18
  5. Step 5: Solve for x
    x = 116,767,385,215.18/526,821.54
  6. Step 6: Final answer
    x = 221,645.05

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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.