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Finding the Fourth Proportional to 183,953.92, 275,700.16 and 78,649.28

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Solution

The fourth proportional to 183,953.92, 275,700.16 and 78,649.28 is: 117,875.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,953.92 : 275,700.16 = 78,649.28 : x
  2. Step 2: Convert to fraction form
    183,953.92/275,700.16 = 78,649.28/x
  3. Step 3: Cross multiply
    183,953.92x = 275,700.16 × 78,649.28
  4. Step 4: Simplify right side
    183,953.92x = 21,683,619,079.88
  5. Step 5: Solve for x
    x = 21,683,619,079.88/183,953.92
  6. Step 6: Final answer
    x = 117,875.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.