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Finding the Fourth Proportional to 266,242,880, 399,364,320 and 64,523,072

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Solution

The fourth proportional to 266,242,880, 399,364,320 and 64,523,072 is: 96,784,608

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,242,880 : 399,364,320 = 64,523,072 : x
  2. Step 2: Convert to fraction form
    266,242,880/399,364,320 = 64,523,072/x
  3. Step 3: Cross multiply
    266,242,880x = 399,364,320 × 64,523,072
  4. Step 4: Simplify right side
    266,242,880x = 25,768,212,773,591,040
  5. Step 5: Solve for x
    x = 25,768,212,773,591,040/266,242,880
  6. Step 6: Final answer
    x = 96,784,608

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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.