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Finding the Fourth Proportional to 253,686.94, 350,090.55 and 153,065.50

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Solution

The fourth proportional to 253,686.94, 350,090.55 and 153,065.50 is: 211,231.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,686.94 : 350,090.55 = 153,065.50 : x
  2. Step 2: Convert to fraction form
    253,686.94/350,090.55 = 153,065.50/x
  3. Step 3: Cross multiply
    253,686.94x = 350,090.55 × 153,065.50
  4. Step 4: Simplify right side
    253,686.94x = 53,586,785,081.03
  5. Step 5: Solve for x
    x = 53,586,785,081.03/253,686.94
  6. Step 6: Final answer
    x = 211,231.94

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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.