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Finding the Fourth Proportional to 375,892,018.70, 563,670,066.45 and 145,784,626.70

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Solution

The fourth proportional to 375,892,018.70, 563,670,066.45 and 145,784,626.70 is: 218,611,798.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,892,018.70 : 563,670,066.45 = 145,784,626.70 : x
  2. Step 2: Convert to fraction form
    375,892,018.70/563,670,066.45 = 145,784,626.70/x
  3. Step 3: Cross multiply
    375,892,018.70x = 563,670,066.45 × 145,784,626.70
  4. Step 4: Simplify right side
    375,892,018.70x = 82,174,430,219,377,440
  5. Step 5: Solve for x
    x = 82,174,430,219,377,440/375,892,018.70
  6. Step 6: Final answer
    x = 218,611,798.42

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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.