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Finding the Fourth Proportional to 138,927.96, 208,473.75 and 96,266.88

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Solution

The fourth proportional to 138,927.96, 208,473.75 and 96,266.88 is: 144,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,927.96 : 208,473.75 = 96,266.88 : x
  2. Step 2: Convert to fraction form
    138,927.96/208,473.75 = 96,266.88/x
  3. Step 3: Cross multiply
    138,927.96x = 208,473.75 × 96,266.88
  4. Step 4: Simplify right side
    138,927.96x = 20,069,117,474.40
  5. Step 5: Solve for x
    x = 20,069,117,474.40/138,927.96
  6. Step 6: Final answer
    x = 144,457.01

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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.