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Finding the Fourth Proportional to 350,728.80, 525,963.60 and 114,079.20

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Solution

The fourth proportional to 350,728.80, 525,963.60 and 114,079.20 is: 171,076.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,728.80 : 525,963.60 = 114,079.20 : x
  2. Step 2: Convert to fraction form
    350,728.80/525,963.60 = 114,079.20/x
  3. Step 3: Cross multiply
    350,728.80x = 525,963.60 × 114,079.20
  4. Step 4: Simplify right side
    350,728.80x = 60,001,506,717.12
  5. Step 5: Solve for x
    x = 60,001,506,717.12/350,728.80
  6. Step 6: Final answer
    x = 171,076.65

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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.