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Finding the Fourth Proportional to 144,811.80, 217,059.30 and 51,269.40

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Solution

The fourth proportional to 144,811.80, 217,059.30 and 51,269.40 is: 76,848.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,811.80 : 217,059.30 = 51,269.40 : x
  2. Step 2: Convert to fraction form
    144,811.80/217,059.30 = 51,269.40/x
  3. Step 3: Cross multiply
    144,811.80x = 217,059.30 × 51,269.40
  4. Step 4: Simplify right side
    144,811.80x = 11,128,500,075.42
  5. Step 5: Solve for x
    x = 11,128,500,075.42/144,811.80
  6. Step 6: Final answer
    x = 76,848.02

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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.