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Finding the Fourth Proportional to 96,916.84, 145,375.26 and 53,417.32

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Solution

The fourth proportional to 96,916.84, 145,375.26 and 53,417.32 is: 80,125.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,916.84 : 145,375.26 = 53,417.32 : x
  2. Step 2: Convert to fraction form
    96,916.84/145,375.26 = 53,417.32/x
  3. Step 3: Cross multiply
    96,916.84x = 145,375.26 × 53,417.32
  4. Step 4: Simplify right side
    96,916.84x = 7,765,556,783.50
  5. Step 5: Solve for x
    x = 7,765,556,783.50/96,916.84
  6. Step 6: Final answer
    x = 80,125.98

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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.