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Finding the Fourth Proportional to 104,965,718.90, 157,401,339.15 and 40,248,014.90

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Solution

The fourth proportional to 104,965,718.90, 157,401,339.15 and 40,248,014.90 is: 60,353,908.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,965,718.90 : 157,401,339.15 = 40,248,014.90 : x
  2. Step 2: Convert to fraction form
    104,965,718.90/157,401,339.15 = 40,248,014.90/x
  3. Step 3: Cross multiply
    104,965,718.90x = 157,401,339.15 × 40,248,014.90
  4. Step 4: Simplify right side
    104,965,718.90x = 6,335,091,443,389,153
  5. Step 5: Solve for x
    x = 6,335,091,443,389,153/104,965,718.90
  6. Step 6: Final answer
    x = 60,353,908.97

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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.