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Finding the Fourth Proportional to 344,955.28, 517,510.66 and 105,090.64

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Solution

The fourth proportional to 344,955.28, 517,510.66 and 105,090.64 is: 157,659.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,955.28 : 517,510.66 = 105,090.64 : x
  2. Step 2: Convert to fraction form
    344,955.28/517,510.66 = 105,090.64/x
  3. Step 3: Cross multiply
    344,955.28x = 517,510.66 × 105,090.64
  4. Step 4: Simplify right side
    344,955.28x = 54,385,526,466.22
  5. Step 5: Solve for x
    x = 54,385,526,466.22/344,955.28
  6. Step 6: Final answer
    x = 157,659.64

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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.