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Finding the Fourth Proportional to 70,924.48, 97,875.78 and 39,094.06

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Solution

The fourth proportional to 70,924.48, 97,875.78 and 39,094.06 is: 53,949.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,924.48 : 97,875.78 = 39,094.06 : x
  2. Step 2: Convert to fraction form
    70,924.48/97,875.78 = 39,094.06/x
  3. Step 3: Cross multiply
    70,924.48x = 97,875.78 × 39,094.06
  4. Step 4: Simplify right side
    70,924.48x = 3,826,361,371.18
  5. Step 5: Solve for x
    x = 3,826,361,371.18/70,924.48
  6. Step 6: Final answer
    x = 53,949.80

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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.