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Finding the Fourth Proportional to 104,505.55, 144,261.70 and 70,559.97

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Solution

The fourth proportional to 104,505.55, 144,261.70 and 70,559.97 is: 97,402.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,505.55 : 144,261.70 = 70,559.97 : x
  2. Step 2: Convert to fraction form
    104,505.55/144,261.70 = 70,559.97/x
  3. Step 3: Cross multiply
    104,505.55x = 144,261.70 × 70,559.97
  4. Step 4: Simplify right side
    104,505.55x = 10,179,101,047.75
  5. Step 5: Solve for x
    x = 10,179,101,047.75/104,505.55
  6. Step 6: Final answer
    x = 97,402.49

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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.