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Finding the Fourth Proportional to 267,489,968.40, 401,234,952.60 and 194,552,643.60

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Solution

The fourth proportional to 267,489,968.40, 401,234,952.60 and 194,552,643.60 is: 291,828,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,489,968.40 : 401,234,952.60 = 194,552,643.60 : x
  2. Step 2: Convert to fraction form
    267,489,968.40/401,234,952.60 = 194,552,643.60/x
  3. Step 3: Cross multiply
    267,489,968.40x = 401,234,952.60 × 194,552,643.60
  4. Step 4: Simplify right side
    267,489,968.40x = 78,061,320,733,050,688
  5. Step 5: Solve for x
    x = 78,061,320,733,050,688/267,489,968.40
  6. Step 6: Final answer
    x = 291,828,965.40

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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.