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Finding the Fourth Proportional to 370,978,049.70, 556,467,074.55 and 98,376,372.90

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Solution

The fourth proportional to 370,978,049.70, 556,467,074.55 and 98,376,372.90 is: 147,564,559.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,978,049.70 : 556,467,074.55 = 98,376,372.90 : x
  2. Step 2: Convert to fraction form
    370,978,049.70/556,467,074.55 = 98,376,372.90/x
  3. Step 3: Cross multiply
    370,978,049.70x = 556,467,074.55 × 98,376,372.90
  4. Step 4: Simplify right side
    370,978,049.70x = 54,743,212,432,502,896
  5. Step 5: Solve for x
    x = 54,743,212,432,502,896/370,978,049.70
  6. Step 6: Final answer
    x = 147,564,559.35

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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.