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Finding the Fourth Proportional to 240,728.55, 360,928.80 and 114,429.30

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Solution

The fourth proportional to 240,728.55, 360,928.80 and 114,429.30 is: 171,565.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,728.55 : 360,928.80 = 114,429.30 : x
  2. Step 2: Convert to fraction form
    240,728.55/360,928.80 = 114,429.30/x
  3. Step 3: Cross multiply
    240,728.55x = 360,928.80 × 114,429.30
  4. Step 4: Simplify right side
    240,728.55x = 41,300,829,933.84
  5. Step 5: Solve for x
    x = 41,300,829,933.84/240,728.55
  6. Step 6: Final answer
    x = 171,565.98

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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.