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Finding the Fourth Proportional to 147,205.40, 220,808.10 and 73,477.40

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Solution

The fourth proportional to 147,205.40, 220,808.10 and 73,477.40 is: 110,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,205.40 : 220,808.10 = 73,477.40 : x
  2. Step 2: Convert to fraction form
    147,205.40/220,808.10 = 73,477.40/x
  3. Step 3: Cross multiply
    147,205.40x = 220,808.10 × 73,477.40
  4. Step 4: Simplify right side
    147,205.40x = 16,224,405,086.94
  5. Step 5: Solve for x
    x = 16,224,405,086.94/147,205.40
  6. Step 6: Final answer
    x = 110,216.10

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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.