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Finding the Fourth Proportional to 105,363.70, 158,045.55 and 104,707.60

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Solution

The fourth proportional to 105,363.70, 158,045.55 and 104,707.60 is: 157,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,363.70 : 158,045.55 = 104,707.60 : x
  2. Step 2: Convert to fraction form
    105,363.70/158,045.55 = 104,707.60/x
  3. Step 3: Cross multiply
    105,363.70x = 158,045.55 × 104,707.60
  4. Step 4: Simplify right side
    105,363.70x = 16,548,570,231.18
  5. Step 5: Solve for x
    x = 16,548,570,231.18/105,363.70
  6. Step 6: Final answer
    x = 157,061.40

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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.