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Finding the Fourth Proportional to 351,344.16, 526,987.44 and 98,628.48

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Solution

The fourth proportional to 351,344.16, 526,987.44 and 98,628.48 is: 147,934.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,344.16 : 526,987.44 = 98,628.48 : x
  2. Step 2: Convert to fraction form
    351,344.16/526,987.44 = 98,628.48/x
  3. Step 3: Cross multiply
    351,344.16x = 526,987.44 × 98,628.48
  4. Step 4: Simplify right side
    351,344.16x = 51,975,970,186.29
  5. Step 5: Solve for x
    x = 51,975,970,186.29/351,344.16
  6. Step 6: Final answer
    x = 147,934.64

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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.