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Finding the Fourth Proportional to 163,685.49, 245,527.56 and 45,356.49

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Solution

The fourth proportional to 163,685.49, 245,527.56 and 45,356.49 is: 68,034.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,685.49 : 245,527.56 = 45,356.49 : x
  2. Step 2: Convert to fraction form
    163,685.49/245,527.56 = 45,356.49/x
  3. Step 3: Cross multiply
    163,685.49x = 245,527.56 × 45,356.49
  4. Step 4: Simplify right side
    163,685.49x = 11,136,268,319.86
  5. Step 5: Solve for x
    x = 11,136,268,319.86/163,685.49
  6. Step 6: Final answer
    x = 68,034.55

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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.