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Finding the Fourth Proportional to 350,051.20, 525,076.80 and 163,081.60

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Solution

The fourth proportional to 350,051.20, 525,076.80 and 163,081.60 is: 244,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,051.20 : 525,076.80 = 163,081.60 : x
  2. Step 2: Convert to fraction form
    350,051.20/525,076.80 = 163,081.60/x
  3. Step 3: Cross multiply
    350,051.20x = 525,076.80 × 163,081.60
  4. Step 4: Simplify right side
    350,051.20x = 85,630,364,666.88
  5. Step 5: Solve for x
    x = 85,630,364,666.88/350,051.20
  6. Step 6: Final answer
    x = 244,622.40

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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.