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Finding the Fourth Proportional to 334,430.70, 501,706.80 and 109,728.60

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Solution

The fourth proportional to 334,430.70, 501,706.80 and 109,728.60 is: 164,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,430.70 : 501,706.80 = 109,728.60 : x
  2. Step 2: Convert to fraction form
    334,430.70/501,706.80 = 109,728.60/x
  3. Step 3: Cross multiply
    334,430.70x = 501,706.80 × 109,728.60
  4. Step 4: Simplify right side
    334,430.70x = 55,051,584,774.48
  5. Step 5: Solve for x
    x = 55,051,584,774.48/334,430.70
  6. Step 6: Final answer
    x = 164,612.83

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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.