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Finding the Fourth Proportional to 111,548.95, 153,937.75 and 60,561.75

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Solution

The fourth proportional to 111,548.95, 153,937.75 and 60,561.75 is: 83,575.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,548.95 : 153,937.75 = 60,561.75 : x
  2. Step 2: Convert to fraction form
    111,548.95/153,937.75 = 60,561.75/x
  3. Step 3: Cross multiply
    111,548.95x = 153,937.75 × 60,561.75
  4. Step 4: Simplify right side
    111,548.95x = 9,322,739,531.06
  5. Step 5: Solve for x
    x = 9,322,739,531.06/111,548.95
  6. Step 6: Final answer
    x = 83,575.32

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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.