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Finding the Fourth Proportional to 274,940,922.40, 412,402,052.40 and 70,471,002.40

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Solution

The fourth proportional to 274,940,922.40, 412,402,052.40 and 70,471,002.40 is: 105,704,111.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,940,922.40 : 412,402,052.40 = 70,471,002.40 : x
  2. Step 2: Convert to fraction form
    274,940,922.40/412,402,052.40 = 70,471,002.40/x
  3. Step 3: Cross multiply
    274,940,922.40x = 412,402,052.40 × 70,471,002.40
  4. Step 4: Simplify right side
    274,940,922.40x = 29,062,386,024,445,328
  5. Step 5: Solve for x
    x = 29,062,386,024,445,328/274,940,922.40
  6. Step 6: Final answer
    x = 105,704,111.89

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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.