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Finding the Fourth Proportional to 124,706.35, 187,133.28 and 45,875.89

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Solution

The fourth proportional to 124,706.35, 187,133.28 and 45,875.89 is: 68,840.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,706.35 : 187,133.28 = 45,875.89 : x
  2. Step 2: Convert to fraction form
    124,706.35/187,133.28 = 45,875.89/x
  3. Step 3: Cross multiply
    124,706.35x = 187,133.28 × 45,875.89
  4. Step 4: Simplify right side
    124,706.35x = 8,584,905,768.62
  5. Step 5: Solve for x
    x = 8,584,905,768.62/124,706.35
  6. Step 6: Final answer
    x = 68,840.97

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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.