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Finding the Fourth Proportional to 416,943.32, 625,410.36 and 101,400.53

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Solution

The fourth proportional to 416,943.32, 625,410.36 and 101,400.53 is: 152,099.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,943.32 : 625,410.36 = 101,400.53 : x
  2. Step 2: Convert to fraction form
    416,943.32/625,410.36 = 101,400.53/x
  3. Step 3: Cross multiply
    416,943.32x = 625,410.36 × 101,400.53
  4. Step 4: Simplify right side
    416,943.32x = 63,416,938,844.44
  5. Step 5: Solve for x
    x = 63,416,938,844.44/416,943.32
  6. Step 6: Final answer
    x = 152,099.67

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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.