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Finding the Fourth Proportional to 65,352,968.64, 98,040,092.58 and 19,299,495.78

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Solution

The fourth proportional to 65,352,968.64, 98,040,092.58 and 19,299,495.78 is: 28,952,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,352,968.64 : 98,040,092.58 = 19,299,495.78 : x
  2. Step 2: Convert to fraction form
    65,352,968.64/98,040,092.58 = 19,299,495.78/x
  3. Step 3: Cross multiply
    65,352,968.64x = 98,040,092.58 × 19,299,495.78
  4. Step 4: Simplify right side
    65,352,968.64x = 1,892,124,353,018,519.50
  5. Step 5: Solve for x
    x = 1,892,124,353,018,519.50/65,352,968.64
  6. Step 6: Final answer
    x = 28,952,385.67

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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.