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Finding the Fourth Proportional to 109,347.84, 150,900.48 and 61,601.76

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Solution

The fourth proportional to 109,347.84, 150,900.48 and 61,601.76 is: 85,010.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,347.84 : 150,900.48 = 61,601.76 : x
  2. Step 2: Convert to fraction form
    109,347.84/150,900.48 = 61,601.76/x
  3. Step 3: Cross multiply
    109,347.84x = 150,900.48 × 61,601.76
  4. Step 4: Simplify right side
    109,347.84x = 9,295,735,152.84
  5. Step 5: Solve for x
    x = 9,295,735,152.84/109,347.84
  6. Step 6: Final answer
    x = 85,010.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.