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Finding the Fourth Proportional to 210,599.60, 315,852.88 and 60,807.36

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Solution

The fourth proportional to 210,599.60, 315,852.88 and 60,807.36 is: 91,197.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,599.60 : 315,852.88 = 60,807.36 : x
  2. Step 2: Convert to fraction form
    210,599.60/315,852.88 = 60,807.36/x
  3. Step 3: Cross multiply
    210,599.60x = 315,852.88 × 60,807.36
  4. Step 4: Simplify right side
    210,599.60x = 19,206,179,781.20
  5. Step 5: Solve for x
    x = 19,206,179,781.20/210,599.60
  6. Step 6: Final answer
    x = 91,197.61

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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.