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Finding the Fourth Proportional to 159,669.84, 220,386.78 and 94,315.98

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Solution

The fourth proportional to 159,669.84, 220,386.78 and 94,315.98 is: 130,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,669.84 : 220,386.78 = 94,315.98 : x
  2. Step 2: Convert to fraction form
    159,669.84/220,386.78 = 94,315.98/x
  3. Step 3: Cross multiply
    159,669.84x = 220,386.78 × 94,315.98
  4. Step 4: Simplify right side
    159,669.84x = 20,785,995,134.74
  5. Step 5: Solve for x
    x = 20,785,995,134.74/159,669.84
  6. Step 6: Final answer
    x = 130,181.10

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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.