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Finding the Fourth Proportional to 236,485.60, 354,731.52 and 78,714.08

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Solution

The fourth proportional to 236,485.60, 354,731.52 and 78,714.08 is: 118,072.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,485.60 : 354,731.52 = 78,714.08 : x
  2. Step 2: Convert to fraction form
    236,485.60/354,731.52 = 78,714.08/x
  3. Step 3: Cross multiply
    236,485.60x = 354,731.52 × 78,714.08
  4. Step 4: Simplify right side
    236,485.60x = 27,922,365,243.80
  5. Step 5: Solve for x
    x = 27,922,365,243.80/236,485.60
  6. Step 6: Final answer
    x = 118,072.16

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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.