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Finding the Fourth Proportional to 127,118.84, 190,652.13 and 120,795.98

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Solution

The fourth proportional to 127,118.84, 190,652.13 and 120,795.98 is: 181,169.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,118.84 : 190,652.13 = 120,795.98 : x
  2. Step 2: Convert to fraction form
    127,118.84/190,652.13 = 120,795.98/x
  3. Step 3: Cross multiply
    127,118.84x = 190,652.13 × 120,795.98
  4. Step 4: Simplify right side
    127,118.84x = 23,030,009,929.18
  5. Step 5: Solve for x
    x = 23,030,009,929.18/127,118.84
  6. Step 6: Final answer
    x = 181,169.14

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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.