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Finding the Fourth Proportional to 109,798.70, 151,522.19 and 59,497.70

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Solution

The fourth proportional to 109,798.70, 151,522.19 and 59,497.70 is: 82,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,798.70 : 151,522.19 = 59,497.70 : x
  2. Step 2: Convert to fraction form
    109,798.70/151,522.19 = 59,497.70/x
  3. Step 3: Cross multiply
    109,798.70x = 151,522.19 × 59,497.70
  4. Step 4: Simplify right side
    109,798.70x = 9,015,220,748.86
  5. Step 5: Solve for x
    x = 9,015,220,748.86/109,798.70
  6. Step 6: Final answer
    x = 82,106.81

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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.