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Finding the Fourth Proportional to 104,491.72, 144,242.72 and 70,546.19

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Solution

The fourth proportional to 104,491.72, 144,242.72 and 70,546.19 is: 97,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,491.72 : 144,242.72 = 70,546.19 : x
  2. Step 2: Convert to fraction form
    104,491.72/144,242.72 = 70,546.19/x
  3. Step 3: Cross multiply
    104,491.72x = 144,242.72 × 70,546.19
  4. Step 4: Simplify right side
    104,491.72x = 10,175,774,331.24
  5. Step 5: Solve for x
    x = 10,175,774,331.24/104,491.72
  6. Step 6: Final answer
    x = 97,383.55

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1.5x scale

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.