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Finding the Fourth Proportional to 127,521.54, 191,267.73 and 34,020

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Solution

The fourth proportional to 127,521.54, 191,267.73 and 34,020 is: 51,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,521.54 : 191,267.73 = 34,020 : x
  2. Step 2: Convert to fraction form
    127,521.54/191,267.73 = 34,020/x
  3. Step 3: Cross multiply
    127,521.54x = 191,267.73 × 34,020
  4. Step 4: Simplify right side
    127,521.54x = 6,506,928,174.60
  5. Step 5: Solve for x
    x = 6,506,928,174.60/127,521.54
  6. Step 6: Final answer
    x = 51,026.11

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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.