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Finding the Fourth Proportional to 265,583.06, 398,333.24 and 145,699.01

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Solution

The fourth proportional to 265,583.06, 398,333.24 and 145,699.01 is: 218,525.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,583.06 : 398,333.24 = 145,699.01 : x
  2. Step 2: Convert to fraction form
    265,583.06/398,333.24 = 145,699.01/x
  3. Step 3: Cross multiply
    265,583.06x = 398,333.24 × 145,699.01
  4. Step 4: Simplify right side
    265,583.06x = 58,036,758,718.09
  5. Step 5: Solve for x
    x = 58,036,758,718.09/265,583.06
  6. Step 6: Final answer
    x = 218,525.83

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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.