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Finding the Fourth Proportional to 102,065,128.20, 153,097,692.30 and 102,065,128.20

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Solution

The fourth proportional to 102,065,128.20, 153,097,692.30 and 102,065,128.20 is: 153,097,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,065,128.20 : 153,097,692.30 = 102,065,128.20 : x
  2. Step 2: Convert to fraction form
    102,065,128.20/153,097,692.30 = 102,065,128.20/x
  3. Step 3: Cross multiply
    102,065,128.20x = 153,097,692.30 × 102,065,128.20
  4. Step 4: Simplify right side
    102,065,128.20x = 15,625,935,591,723,654
  5. Step 5: Solve for x
    x = 15,625,935,591,723,654/102,065,128.20
  6. Step 6: Final answer
    x = 153,097,692.30

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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.