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Finding the Fourth Proportional to 351,130.32, 526,601.52 and 98,396.64

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Solution

The fourth proportional to 351,130.32, 526,601.52 and 98,396.64 is: 147,568.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,130.32 : 526,601.52 = 98,396.64 : x
  2. Step 2: Convert to fraction form
    351,130.32/526,601.52 = 98,396.64/x
  3. Step 3: Cross multiply
    351,130.32x = 526,601.52 × 98,396.64
  4. Step 4: Simplify right side
    351,130.32x = 51,815,820,186.89
  5. Step 5: Solve for x
    x = 51,815,820,186.89/351,130.32
  6. Step 6: Final answer
    x = 147,568.63

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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.