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Finding the Fourth Proportional to 351,225.76, 526,820.06 and 98,523.78

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Solution

The fourth proportional to 351,225.76, 526,820.06 and 98,523.78 is: 147,780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,225.76 : 526,820.06 = 98,523.78 : x
  2. Step 2: Convert to fraction form
    351,225.76/526,820.06 = 98,523.78/x
  3. Step 3: Cross multiply
    351,225.76x = 526,820.06 × 98,523.78
  4. Step 4: Simplify right side
    351,225.76x = 51,904,303,691.03
  5. Step 5: Solve for x
    x = 51,904,303,691.03/351,225.76
  6. Step 6: Final answer
    x = 147,780.46

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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.