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Finding the Fourth Proportional to 147,110.40, 220,665.60 and 48,614.40

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Solution

The fourth proportional to 147,110.40, 220,665.60 and 48,614.40 is: 72,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,110.40 : 220,665.60 = 48,614.40 : x
  2. Step 2: Convert to fraction form
    147,110.40/220,665.60 = 48,614.40/x
  3. Step 3: Cross multiply
    147,110.40x = 220,665.60 × 48,614.40
  4. Step 4: Simplify right side
    147,110.40x = 10,727,525,744.64
  5. Step 5: Solve for x
    x = 10,727,525,744.64/147,110.40
  6. Step 6: Final answer
    x = 72,921.60

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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.