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Finding the Fourth Proportional to 144,140.38, 216,210.60 and 73,974.94

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Solution

The fourth proportional to 144,140.38, 216,210.60 and 73,974.94 is: 110,962.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,140.38 : 216,210.60 = 73,974.94 : x
  2. Step 2: Convert to fraction form
    144,140.38/216,210.60 = 73,974.94/x
  3. Step 3: Cross multiply
    144,140.38x = 216,210.60 × 73,974.94
  4. Step 4: Simplify right side
    144,140.38x = 15,994,166,162.36
  5. Step 5: Solve for x
    x = 15,994,166,162.36/144,140.38
  6. Step 6: Final answer
    x = 110,962.43

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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.