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Finding the Fourth Proportional to 373,313,892.30, 521,430,125.70 and 373,313,892.30

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Solution

The fourth proportional to 373,313,892.30, 521,430,125.70 and 373,313,892.30 is: 521,430,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,313,892.30 : 521,430,125.70 = 373,313,892.30 : x
  2. Step 2: Convert to fraction form
    373,313,892.30/521,430,125.70 = 373,313,892.30/x
  3. Step 3: Cross multiply
    373,313,892.30x = 521,430,125.70 × 373,313,892.30
  4. Step 4: Simplify right side
    373,313,892.30x = 194,657,109,787,545,248
  5. Step 5: Solve for x
    x = 194,657,109,787,545,248/373,313,892.30
  6. Step 6: Final answer
    x = 521,430,125.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.