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Finding the Fourth Proportional to 199,611,301.80, 299,416,952.70 and 113,316,364.20

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Solution

The fourth proportional to 199,611,301.80, 299,416,952.70 and 113,316,364.20 is: 169,974,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,611,301.80 : 299,416,952.70 = 113,316,364.20 : x
  2. Step 2: Convert to fraction form
    199,611,301.80/299,416,952.70 = 113,316,364.20/x
  3. Step 3: Cross multiply
    199,611,301.80x = 299,416,952.70 × 113,316,364.20
  4. Step 4: Simplify right side
    199,611,301.80x = 33,928,840,459,807,372
  5. Step 5: Solve for x
    x = 33,928,840,459,807,372/199,611,301.80
  6. Step 6: Final answer
    x = 169,974,546.30

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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.