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Finding the Fourth Proportional to 10,103,692.20, 15,155,538.30 and 10,103,692.20

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Solution

The fourth proportional to 10,103,692.20, 15,155,538.30 and 10,103,692.20 is: 15,155,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,103,692.20 : 15,155,538.30 = 10,103,692.20 : x
  2. Step 2: Convert to fraction form
    10,103,692.20/15,155,538.30 = 10,103,692.20/x
  3. Step 3: Cross multiply
    10,103,692.20x = 15,155,538.30 × 10,103,692.20
  4. Step 4: Simplify right side
    10,103,692.20x = 153,126,894,108,511.25
  5. Step 5: Solve for x
    x = 153,126,894,108,511.25/10,103,692.20
  6. Step 6: Final answer
    x = 15,155,538.30

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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.