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Finding the Fourth Proportional to 147,480.60, 221,220.90 and 48,984.60

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Solution

The fourth proportional to 147,480.60, 221,220.90 and 48,984.60 is: 73,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,480.60 : 221,220.90 = 48,984.60 : x
  2. Step 2: Convert to fraction form
    147,480.60/221,220.90 = 48,984.60/x
  3. Step 3: Cross multiply
    147,480.60x = 221,220.90 × 48,984.60
  4. Step 4: Simplify right side
    147,480.60x = 10,836,417,298.14
  5. Step 5: Solve for x
    x = 10,836,417,298.14/147,480.60
  6. Step 6: Final answer
    x = 73,476.90

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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.