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Finding the Fourth Proportional to 296,390.72, 444,482.40 and 127,865.36

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Solution

The fourth proportional to 296,390.72, 444,482.40 and 127,865.36 is: 191,753.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,390.72 : 444,482.40 = 127,865.36 : x
  2. Step 2: Convert to fraction form
    296,390.72/444,482.40 = 127,865.36/x
  3. Step 3: Cross multiply
    296,390.72x = 444,482.40 × 127,865.36
  4. Step 4: Simplify right side
    296,390.72x = 56,833,902,089.66
  5. Step 5: Solve for x
    x = 56,833,902,089.66/296,390.72
  6. Step 6: Final answer
    x = 191,753.31

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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.