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Finding the Fourth Proportional to 110,406.10, 165,621.30 and 40,300.60

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Solution

The fourth proportional to 110,406.10, 165,621.30 and 40,300.60 is: 60,455.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,406.10 : 165,621.30 = 40,300.60 : x
  2. Step 2: Convert to fraction form
    110,406.10/165,621.30 = 40,300.60/x
  3. Step 3: Cross multiply
    110,406.10x = 165,621.30 × 40,300.60
  4. Step 4: Simplify right side
    110,406.10x = 6,674,637,762.78
  5. Step 5: Solve for x
    x = 6,674,637,762.78/110,406.10
  6. Step 6: Final answer
    x = 60,455.34

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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.