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Finding the Fourth Proportional to 163,307.54, 225,361.07 and 91,687.55

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Solution

The fourth proportional to 163,307.54, 225,361.07 and 91,687.55 is: 126,526.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,307.54 : 225,361.07 = 91,687.55 : x
  2. Step 2: Convert to fraction form
    163,307.54/225,361.07 = 91,687.55/x
  3. Step 3: Cross multiply
    163,307.54x = 225,361.07 × 91,687.55
  4. Step 4: Simplify right side
    163,307.54x = 20,662,803,132.26
  5. Step 5: Solve for x
    x = 20,662,803,132.26/163,307.54
  6. Step 6: Final answer
    x = 126,526.94

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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.