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Finding the Fourth Proportional to 238,473.60, 358,401.60 and 208,060.80

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Solution

The fourth proportional to 238,473.60, 358,401.60 and 208,060.80 is: 312,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,473.60 : 358,401.60 = 208,060.80 : x
  2. Step 2: Convert to fraction form
    238,473.60/358,401.60 = 208,060.80/x
  3. Step 3: Cross multiply
    238,473.60x = 358,401.60 × 208,060.80
  4. Step 4: Simplify right side
    238,473.60x = 74,569,323,617.28
  5. Step 5: Solve for x
    x = 74,569,323,617.28/238,473.60
  6. Step 6: Final answer
    x = 312,694.25

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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.