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Finding the Fourth Proportional to 325,368.20, 488,125.20 and 125,670.80

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Solution

The fourth proportional to 325,368.20, 488,125.20 and 125,670.80 is: 188,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,368.20 : 488,125.20 = 125,670.80 : x
  2. Step 2: Convert to fraction form
    325,368.20/488,125.20 = 125,670.80/x
  3. Step 3: Cross multiply
    325,368.20x = 488,125.20 × 125,670.80
  4. Step 4: Simplify right side
    325,368.20x = 61,343,084,384.16
  5. Step 5: Solve for x
    x = 61,343,084,384.16/325,368.20
  6. Step 6: Final answer
    x = 188,534.36

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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.