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Finding the Fourth Proportional to 113,640.76, 170,461 and 30,534.76

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Solution

The fourth proportional to 113,640.76, 170,461 and 30,534.76 is: 45,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,640.76 : 170,461 = 30,534.76 : x
  2. Step 2: Convert to fraction form
    113,640.76/170,461 = 30,534.76/x
  3. Step 3: Cross multiply
    113,640.76x = 170,461 × 30,534.76
  4. Step 4: Simplify right side
    113,640.76x = 5,204,985,724.36
  5. Step 5: Solve for x
    x = 5,204,985,724.36/113,640.76
  6. Step 6: Final answer
    x = 45,802.10

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1.5x scale

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.