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Finding the Fourth Proportional to 70,934,606.80, 106,401,910.20 and 46,700,897.20

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Solution

The fourth proportional to 70,934,606.80, 106,401,910.20 and 46,700,897.20 is: 70,051,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,934,606.80 : 106,401,910.20 = 46,700,897.20 : x
  2. Step 2: Convert to fraction form
    70,934,606.80/106,401,910.20 = 46,700,897.20/x
  3. Step 3: Cross multiply
    70,934,606.80x = 106,401,910.20 × 46,700,897.20
  4. Step 4: Simplify right side
    70,934,606.80x = 4,969,064,670,133,832
  5. Step 5: Solve for x
    x = 4,969,064,670,133,832/70,934,606.80
  6. Step 6: Final answer
    x = 70,051,345.80

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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.