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Finding the Fourth Proportional to 98,495,872.70, 147,743,809.05 and 30,329,707.10

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Solution

The fourth proportional to 98,495,872.70, 147,743,809.05 and 30,329,707.10 is: 45,494,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,495,872.70 : 147,743,809.05 = 30,329,707.10 : x
  2. Step 2: Convert to fraction form
    98,495,872.70/147,743,809.05 = 30,329,707.10/x
  3. Step 3: Cross multiply
    98,495,872.70x = 147,743,809.05 × 30,329,707.10
  4. Step 4: Simplify right side
    98,495,872.70x = 4,481,026,454,324,830
  5. Step 5: Solve for x
    x = 4,481,026,454,324,830/98,495,872.70
  6. Step 6: Final answer
    x = 45,494,560.65

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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.