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Finding the Fourth Proportional to 111,915.80, 154,440.04 and 60,927.57

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Solution

The fourth proportional to 111,915.80, 154,440.04 and 60,927.57 is: 84,078.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,915.80 : 154,440.04 = 60,927.57 : x
  2. Step 2: Convert to fraction form
    111,915.80/154,440.04 = 60,927.57/x
  3. Step 3: Cross multiply
    111,915.80x = 154,440.04 × 60,927.57
  4. Step 4: Simplify right side
    111,915.80x = 9,409,656,347.90
  5. Step 5: Solve for x
    x = 9,409,656,347.90/111,915.80
  6. Step 6: Final answer
    x = 84,078.00

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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.