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Finding the Fourth Proportional to 124,427.88, 171,655.88 and 84,127.01

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Solution

The fourth proportional to 124,427.88, 171,655.88 and 84,127.01 is: 116,058.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,427.88 : 171,655.88 = 84,127.01 : x
  2. Step 2: Convert to fraction form
    124,427.88/171,655.88 = 84,127.01/x
  3. Step 3: Cross multiply
    124,427.88x = 171,655.88 × 84,127.01
  4. Step 4: Simplify right side
    124,427.88x = 14,440,894,654.40
  5. Step 5: Solve for x
    x = 14,440,894,654.40/124,427.88
  6. Step 6: Final answer
    x = 116,058.35

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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.