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Finding the Fourth Proportional to 70,751.52, 97,637.09 and 42,457.23

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Solution

The fourth proportional to 70,751.52, 97,637.09 and 42,457.23 is: 58,590.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,751.52 : 97,637.09 = 42,457.23 : x
  2. Step 2: Convert to fraction form
    70,751.52/97,637.09 = 42,457.23/x
  3. Step 3: Cross multiply
    70,751.52x = 97,637.09 × 42,457.23
  4. Step 4: Simplify right side
    70,751.52x = 4,145,400,174.37
  5. Step 5: Solve for x
    x = 4,145,400,174.37/70,751.52
  6. Step 6: Final answer
    x = 58,590.97

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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.