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Finding the Fourth Proportional to 351,975.17, 528,061.17 and 115,483.91

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Solution

The fourth proportional to 351,975.17, 528,061.17 and 115,483.91 is: 173,258.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,975.17 : 528,061.17 = 115,483.91 : x
  2. Step 2: Convert to fraction form
    351,975.17/528,061.17 = 115,483.91/x
  3. Step 3: Cross multiply
    351,975.17x = 528,061.17 × 115,483.91
  4. Step 4: Simplify right side
    351,975.17x = 60,982,568,630.77
  5. Step 5: Solve for x
    x = 60,982,568,630.77/351,975.17
  6. Step 6: Final answer
    x = 173,258.16

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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.