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Finding the Fourth Proportional to 144,007.20, 216,241.20 and 97,466.40

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Solution

The fourth proportional to 144,007.20, 216,241.20 and 97,466.40 is: 146,355.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,007.20 : 216,241.20 = 97,466.40 : x
  2. Step 2: Convert to fraction form
    144,007.20/216,241.20 = 97,466.40/x
  3. Step 3: Cross multiply
    144,007.20x = 216,241.20 × 97,466.40
  4. Step 4: Simplify right side
    144,007.20x = 21,076,251,295.68
  5. Step 5: Solve for x
    x = 21,076,251,295.68/144,007.20
  6. Step 6: Final answer
    x = 146,355.54

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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.