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Finding the Fourth Proportional to 124,705.52, 171,871.08 and 94,418.28

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Solution

The fourth proportional to 124,705.52, 171,871.08 and 94,418.28 is: 130,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,705.52 : 171,871.08 = 94,418.28 : x
  2. Step 2: Convert to fraction form
    124,705.52/171,871.08 = 94,418.28/x
  3. Step 3: Cross multiply
    124,705.52x = 171,871.08 × 94,418.28
  4. Step 4: Simplify right side
    124,705.52x = 16,227,771,755.34
  5. Step 5: Solve for x
    x = 16,227,771,755.34/124,705.52
  6. Step 6: Final answer
    x = 130,128.74

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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.