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Finding the Fourth Proportional to 316,577.76, 474,862.68 and 127,122

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Solution

The fourth proportional to 316,577.76, 474,862.68 and 127,122 is: 190,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,577.76 : 474,862.68 = 127,122 : x
  2. Step 2: Convert to fraction form
    316,577.76/474,862.68 = 127,122/x
  3. Step 3: Cross multiply
    316,577.76x = 474,862.68 × 127,122
  4. Step 4: Simplify right side
    316,577.76x = 60,365,493,606.96
  5. Step 5: Solve for x
    x = 60,365,493,606.96/316,577.76
  6. Step 6: Final answer
    x = 190,681.41

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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.