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Finding the Fourth Proportional to 310,750.36, 428,873.54 and 174,790.04

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Solution

The fourth proportional to 310,750.36, 428,873.54 and 174,790.04 is: 241,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,750.36 : 428,873.54 = 174,790.04 : x
  2. Step 2: Convert to fraction form
    310,750.36/428,873.54 = 174,790.04/x
  3. Step 3: Cross multiply
    310,750.36x = 428,873.54 × 174,790.04
  4. Step 4: Simplify right side
    310,750.36x = 74,962,820,193.22
  5. Step 5: Solve for x
    x = 74,962,820,193.22/310,750.36
  6. Step 6: Final answer
    x = 241,231.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.