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Finding the Fourth Proportional to 135,048.25, 186,366.63 and 75,432.25

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Solution

The fourth proportional to 135,048.25, 186,366.63 and 75,432.25 is: 104,096.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,048.25 : 186,366.63 = 75,432.25 : x
  2. Step 2: Convert to fraction form
    135,048.25/186,366.63 = 75,432.25/x
  3. Step 3: Cross multiply
    135,048.25x = 186,366.63 × 75,432.25
  4. Step 4: Simplify right side
    135,048.25x = 14,058,054,225.82
  5. Step 5: Solve for x
    x = 14,058,054,225.82/135,048.25
  6. Step 6: Final answer
    x = 104,096.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.