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Finding the Fourth Proportional to 194,942,503.80, 292,413,755.70 and 156,678,751.80

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Solution

The fourth proportional to 194,942,503.80, 292,413,755.70 and 156,678,751.80 is: 235,018,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,942,503.80 : 292,413,755.70 = 156,678,751.80 : x
  2. Step 2: Convert to fraction form
    194,942,503.80/292,413,755.70 = 156,678,751.80/x
  3. Step 3: Cross multiply
    194,942,503.80x = 292,413,755.70 × 156,678,751.80
  4. Step 4: Simplify right side
    194,942,503.80x = 45,815,022,252,226,136
  5. Step 5: Solve for x
    x = 45,815,022,252,226,136/194,942,503.80
  6. Step 6: Final answer
    x = 235,018,127.70

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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.