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Finding the Fourth Proportional to 122,689, 184,076.70 and 60,403.24

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Solution

The fourth proportional to 122,689, 184,076.70 and 60,403.24 is: 90,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,689 : 184,076.70 = 60,403.24 : x
  2. Step 2: Convert to fraction form
    122,689/184,076.70 = 60,403.24/x
  3. Step 3: Cross multiply
    122,689x = 184,076.70 × 60,403.24
  4. Step 4: Simplify right side
    122,689x = 11,118,829,088.51
  5. Step 5: Solve for x
    x = 11,118,829,088.51/122,689
  6. Step 6: Final answer
    x = 90,626.13

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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.