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Finding the Fourth Proportional to 70,302.72, 97,063.02 and 62,736.04

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Solution

The fourth proportional to 70,302.72, 97,063.02 and 62,736.04 is: 86,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,302.72 : 97,063.02 = 62,736.04 : x
  2. Step 2: Convert to fraction form
    70,302.72/97,063.02 = 62,736.04/x
  3. Step 3: Cross multiply
    70,302.72x = 97,063.02 × 62,736.04
  4. Step 4: Simplify right side
    70,302.72x = 6,089,349,505.24
  5. Step 5: Solve for x
    x = 6,089,349,505.24/70,302.72
  6. Step 6: Final answer
    x = 86,616.13

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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.