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Finding the Fourth Proportional to 207,016.40, 310,524.60 and 144,030.80

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Solution

The fourth proportional to 207,016.40, 310,524.60 and 144,030.80 is: 216,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,016.40 : 310,524.60 = 144,030.80 : x
  2. Step 2: Convert to fraction form
    207,016.40/310,524.60 = 144,030.80/x
  3. Step 3: Cross multiply
    207,016.40x = 310,524.60 × 144,030.80
  4. Step 4: Simplify right side
    207,016.40x = 44,725,106,557.68
  5. Step 5: Solve for x
    x = 44,725,106,557.68/207,016.40
  6. Step 6: Final answer
    x = 216,046.20

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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.