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Finding the Fourth Proportional to 220,062,944.40, 330,094,416.60 and 155,492,862.90

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Solution

The fourth proportional to 220,062,944.40, 330,094,416.60 and 155,492,862.90 is: 233,239,294.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,062,944.40 : 330,094,416.60 = 155,492,862.90 : x
  2. Step 2: Convert to fraction form
    220,062,944.40/330,094,416.60 = 155,492,862.90/x
  3. Step 3: Cross multiply
    220,062,944.40x = 330,094,416.60 × 155,492,862.90
  4. Step 4: Simplify right side
    220,062,944.40x = 51,327,325,864,439,288
  5. Step 5: Solve for x
    x = 51,327,325,864,439,288/220,062,944.40
  6. Step 6: Final answer
    x = 233,239,294.35

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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.