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Finding the Fourth Proportional to 316,573.76, 474,856.68 and 127,118

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Solution

The fourth proportional to 316,573.76, 474,856.68 and 127,118 is: 190,675.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,573.76 : 474,856.68 = 127,118 : x
  2. Step 2: Convert to fraction form
    316,573.76/474,856.68 = 127,118/x
  3. Step 3: Cross multiply
    316,573.76x = 474,856.68 × 127,118
  4. Step 4: Simplify right side
    316,573.76x = 60,362,831,448.24
  5. Step 5: Solve for x
    x = 60,362,831,448.24/316,573.76
  6. Step 6: Final answer
    x = 190,675.41

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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.