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Finding the Fourth Proportional to 45,908,897.70, 68,863,346.55 and 15,616,760.70

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Solution

The fourth proportional to 45,908,897.70, 68,863,346.55 and 15,616,760.70 is: 23,425,141.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908,897.70 : 68,863,346.55 = 15,616,760.70 : x
  2. Step 2: Convert to fraction form
    45,908,897.70/68,863,346.55 = 15,616,760.70/x
  3. Step 3: Cross multiply
    45,908,897.70x = 68,863,346.55 × 15,616,760.70
  4. Step 4: Simplify right side
    45,908,897.70x = 1,075,422,404,072,520.50
  5. Step 5: Solve for x
    x = 1,075,422,404,072,520.50/45,908,897.70
  6. Step 6: Final answer
    x = 23,425,141.05

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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.