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Finding the Fourth Proportional to 124,511.70, 171,827.91 and 70,796.58

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Solution

The fourth proportional to 124,511.70, 171,827.91 and 70,796.58 is: 97,700.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,511.70 : 171,827.91 = 70,796.58 : x
  2. Step 2: Convert to fraction form
    124,511.70/171,827.91 = 70,796.58/x
  3. Step 3: Cross multiply
    124,511.70x = 171,827.91 × 70,796.58
  4. Step 4: Simplify right side
    124,511.70x = 12,164,828,376.55
  5. Step 5: Solve for x
    x = 12,164,828,376.55/124,511.70
  6. Step 6: Final answer
    x = 97,700.28

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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.