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Finding the Fourth Proportional to 113,460, 170,267.76 and 39,588

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Solution

The fourth proportional to 113,460, 170,267.76 and 39,588 is: 59,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,460 : 170,267.76 = 39,588 : x
  2. Step 2: Convert to fraction form
    113,460/170,267.76 = 39,588/x
  3. Step 3: Cross multiply
    113,460x = 170,267.76 × 39,588
  4. Step 4: Simplify right side
    113,460x = 6,740,560,082.88
  5. Step 5: Solve for x
    x = 6,740,560,082.88/113,460
  6. Step 6: Final answer
    x = 59,409.13

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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.