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Finding the Fourth Proportional to 70,939,266.30, 106,408,899.45 and 70,939,266.30

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Solution

The fourth proportional to 70,939,266.30, 106,408,899.45 and 70,939,266.30 is: 106,408,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,939,266.30 : 106,408,899.45 = 70,939,266.30 : x
  2. Step 2: Convert to fraction form
    70,939,266.30/106,408,899.45 = 70,939,266.30/x
  3. Step 3: Cross multiply
    70,939,266.30x = 106,408,899.45 × 70,939,266.30
  4. Step 4: Simplify right side
    70,939,266.30x = 7,548,569,254,773,473
  5. Step 5: Solve for x
    x = 7,548,569,254,773,473/70,939,266.30
  6. Step 6: Final answer
    x = 106,408,899.45

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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.