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Finding the Fourth Proportional to 127,613, 191,421.12 and 44,507

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Solution

The fourth proportional to 127,613, 191,421.12 and 44,507 is: 66,761.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,613 : 191,421.12 = 44,507 : x
  2. Step 2: Convert to fraction form
    127,613/191,421.12 = 44,507/x
  3. Step 3: Cross multiply
    127,613x = 191,421.12 × 44,507
  4. Step 4: Simplify right side
    127,613x = 8,519,579,787.84
  5. Step 5: Solve for x
    x = 8,519,579,787.84/127,613
  6. Step 6: Final answer
    x = 66,761.06

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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.