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Finding the Fourth Proportional to 369,920.37, 554,905.16 and 130,005.26

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Solution

The fourth proportional to 369,920.37, 554,905.16 and 130,005.26 is: 195,016.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,920.37 : 554,905.16 = 130,005.26 : x
  2. Step 2: Convert to fraction form
    369,920.37/554,905.16 = 130,005.26/x
  3. Step 3: Cross multiply
    369,920.37x = 554,905.16 × 130,005.26
  4. Step 4: Simplify right side
    369,920.37x = 72,140,586,664.11
  5. Step 5: Solve for x
    x = 72,140,586,664.11/369,920.37
  6. Step 6: Final answer
    x = 195,016.53

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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.