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Finding the Fourth Proportional to 66,597,371.55, 99,894,955.86 and 19,910,966.22

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Solution

The fourth proportional to 66,597,371.55, 99,894,955.86 and 19,910,966.22 is: 29,866,120.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,597,371.55 : 99,894,955.86 = 19,910,966.22 : x
  2. Step 2: Convert to fraction form
    66,597,371.55/99,894,955.86 = 19,910,966.22/x
  3. Step 3: Cross multiply
    66,597,371.55x = 99,894,955.86 × 19,910,966.22
  4. Step 4: Simplify right side
    66,597,371.55x = 1,989,005,091,676,851
  5. Step 5: Solve for x
    x = 1,989,005,091,676,851/66,597,371.55
  6. Step 6: Final answer
    x = 29,866,120.02

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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.