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Finding the Fourth Proportional to 434,412.60, 651,230.10 and 168,084.60

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Solution

The fourth proportional to 434,412.60, 651,230.10 and 168,084.60 is: 251,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,412.60 : 651,230.10 = 168,084.60 : x
  2. Step 2: Convert to fraction form
    434,412.60/651,230.10 = 168,084.60/x
  3. Step 3: Cross multiply
    434,412.60x = 651,230.10 × 168,084.60
  4. Step 4: Simplify right side
    434,412.60x = 109,461,750,866.46
  5. Step 5: Solve for x
    x = 109,461,750,866.46/434,412.60
  6. Step 6: Final answer
    x = 251,976.46

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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.