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Finding the Fourth Proportional to 100,391.16, 150,531.76 and 46,297.14

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Solution

The fourth proportional to 100,391.16, 150,531.76 and 46,297.14 is: 69,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,391.16 : 150,531.76 = 46,297.14 : x
  2. Step 2: Convert to fraction form
    100,391.16/150,531.76 = 46,297.14/x
  3. Step 3: Cross multiply
    100,391.16x = 150,531.76 × 46,297.14
  4. Step 4: Simplify right side
    100,391.16x = 6,969,189,967.17
  5. Step 5: Solve for x
    x = 6,969,189,967.17/100,391.16
  6. Step 6: Final answer
    x = 69,420.36

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1.5x scale

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.