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Finding the Fourth Proportional to 60,663,927.80, 90,995,891.70 and 40,256,593.40

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Solution

The fourth proportional to 60,663,927.80, 90,995,891.70 and 40,256,593.40 is: 60,384,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,663,927.80 : 90,995,891.70 = 40,256,593.40 : x
  2. Step 2: Convert to fraction form
    60,663,927.80/90,995,891.70 = 40,256,593.40/x
  3. Step 3: Cross multiply
    60,663,927.80x = 90,995,891.70 × 40,256,593.40
  4. Step 4: Simplify right side
    60,663,927.80x = 3,663,184,613,237,335
  5. Step 5: Solve for x
    x = 3,663,184,613,237,335/60,663,927.80
  6. Step 6: Final answer
    x = 60,384,890.10

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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.