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Finding the Fourth Proportional to 109,897.56, 151,593.66 and 70,153.56

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Solution

The fourth proportional to 109,897.56, 151,593.66 and 70,153.56 is: 96,770.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,897.56 : 151,593.66 = 70,153.56 : x
  2. Step 2: Convert to fraction form
    109,897.56/151,593.66 = 70,153.56/x
  3. Step 3: Cross multiply
    109,897.56x = 151,593.66 × 70,153.56
  4. Step 4: Simplify right side
    109,897.56x = 10,634,834,922.43
  5. Step 5: Solve for x
    x = 10,634,834,922.43/109,897.56
  6. Step 6: Final answer
    x = 96,770.44

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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.