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Finding the Fourth Proportional to 65,945,472.54, 91,015,649.55 and 36,586,264.02

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Solution

The fourth proportional to 65,945,472.54, 91,015,649.55 and 36,586,264.02 is: 50,495,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,945,472.54 : 91,015,649.55 = 36,586,264.02 : x
  2. Step 2: Convert to fraction form
    65,945,472.54/91,015,649.55 = 36,586,264.02/x
  3. Step 3: Cross multiply
    65,945,472.54x = 91,015,649.55 × 36,586,264.02
  4. Step 4: Simplify right side
    65,945,472.54x = 3,329,922,584,388,094.50
  5. Step 5: Solve for x
    x = 3,329,922,584,388,094.50/65,945,472.54
  6. Step 6: Final answer
    x = 50,495,090.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.