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Finding the Fourth Proportional to 236,445.60, 353,644.40 and 211,664.80

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Solution

The fourth proportional to 236,445.60, 353,644.40 and 211,664.80 is: 316,580.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,445.60 : 353,644.40 = 211,664.80 : x
  2. Step 2: Convert to fraction form
    236,445.60/353,644.40 = 211,664.80/x
  3. Step 3: Cross multiply
    236,445.60x = 353,644.40 × 211,664.80
  4. Step 4: Simplify right side
    236,445.60x = 74,854,071,197.12
  5. Step 5: Solve for x
    x = 74,854,071,197.12/236,445.60
  6. Step 6: Final answer
    x = 316,580.52

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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.