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Finding the Fourth Proportional to 90,897,301.45, 127,579,072.46 and 90,897,301.45

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Solution

The fourth proportional to 90,897,301.45, 127,579,072.46 and 90,897,301.45 is: 127,579,072.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,897,301.45 : 127,579,072.46 = 90,897,301.45 : x
  2. Step 2: Convert to fraction form
    90,897,301.45/127,579,072.46 = 90,897,301.45/x
  3. Step 3: Cross multiply
    90,897,301.45x = 127,579,072.46 × 90,897,301.45
  4. Step 4: Simplify right side
    90,897,301.45x = 11,596,593,408,108,012
  5. Step 5: Solve for x
    x = 11,596,593,408,108,012/90,897,301.45
  6. Step 6: Final answer
    x = 127,579,072.46

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.