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Finding the Fourth Proportional to 65,664,452.10, 98,496,678.15 and 38,454,672.90

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Solution

The fourth proportional to 65,664,452.10, 98,496,678.15 and 38,454,672.90 is: 57,682,009.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,664,452.10 : 98,496,678.15 = 38,454,672.90 : x
  2. Step 2: Convert to fraction form
    65,664,452.10/98,496,678.15 = 38,454,672.90/x
  3. Step 3: Cross multiply
    65,664,452.10x = 98,496,678.15 × 38,454,672.90
  4. Step 4: Simplify right side
    65,664,452.10x = 3,787,657,539,994,827
  5. Step 5: Solve for x
    x = 3,787,657,539,994,827/65,664,452.10
  6. Step 6: Final answer
    x = 57,682,009.35

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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.