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Finding the Fourth Proportional to 158,051.20, 236,731.20 and 122,713.60

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Solution

The fourth proportional to 158,051.20, 236,731.20 and 122,713.60 is: 183,802.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,051.20 : 236,731.20 = 122,713.60 : x
  2. Step 2: Convert to fraction form
    158,051.20/236,731.20 = 122,713.60/x
  3. Step 3: Cross multiply
    158,051.20x = 236,731.20 × 122,713.60
  4. Step 4: Simplify right side
    158,051.20x = 29,050,137,784.32
  5. Step 5: Solve for x
    x = 29,050,137,784.32/158,051.20
  6. Step 6: Final answer
    x = 183,802.07

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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.