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Finding the Fourth Proportional to 236,796.81, 355,207.51 and 118,428.16

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Solution

The fourth proportional to 236,796.81, 355,207.51 and 118,428.16 is: 177,648.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,796.81 : 355,207.51 = 118,428.16 : x
  2. Step 2: Convert to fraction form
    236,796.81/355,207.51 = 118,428.16/x
  3. Step 3: Cross multiply
    236,796.81x = 355,207.51 × 118,428.16
  4. Step 4: Simplify right side
    236,796.81x = 42,066,571,827.48
  5. Step 5: Solve for x
    x = 42,066,571,827.48/236,796.81
  6. Step 6: Final answer
    x = 177,648.39

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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.