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Finding the Fourth Proportional to 125,301.60, 188,389.80 and 122,677.20

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Solution

The fourth proportional to 125,301.60, 188,389.80 and 122,677.20 is: 184,444.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,301.60 : 188,389.80 = 122,677.20 : x
  2. Step 2: Convert to fraction form
    125,301.60/188,389.80 = 122,677.20/x
  3. Step 3: Cross multiply
    125,301.60x = 188,389.80 × 122,677.20
  4. Step 4: Simplify right side
    125,301.60x = 23,111,133,172.56
  5. Step 5: Solve for x
    x = 23,111,133,172.56/125,301.60
  6. Step 6: Final answer
    x = 184,444.04

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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.