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Finding the Fourth Proportional to 127,609, 191,415.12 and 44,503

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Solution

The fourth proportional to 127,609, 191,415.12 and 44,503 is: 66,755.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,609 : 191,415.12 = 44,503 : x
  2. Step 2: Convert to fraction form
    127,609/191,415.12 = 44,503/x
  3. Step 3: Cross multiply
    127,609x = 191,415.12 × 44,503
  4. Step 4: Simplify right side
    127,609x = 8,518,547,085.36
  5. Step 5: Solve for x
    x = 8,518,547,085.36/127,609
  6. Step 6: Final answer
    x = 66,755.06

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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.