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Finding the Fourth Proportional to 73,472,019.12, 101,357,460.54 and 47,374,919.10

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Solution

The fourth proportional to 73,472,019.12, 101,357,460.54 and 47,374,919.10 is: 65,355,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,472,019.12 : 101,357,460.54 = 47,374,919.10 : x
  2. Step 2: Convert to fraction form
    73,472,019.12/101,357,460.54 = 47,374,919.10/x
  3. Step 3: Cross multiply
    73,472,019.12x = 101,357,460.54 × 47,374,919.10
  4. Step 4: Simplify right side
    73,472,019.12x = 4,801,801,493,263,943
  5. Step 5: Solve for x
    x = 4,801,801,493,263,943/73,472,019.12
  6. Step 6: Final answer
    x = 65,355,512.90

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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.