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Finding the Fourth Proportional to 111,897.08, 154,419.02 and 61,597.08

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Solution

The fourth proportional to 111,897.08, 154,419.02 and 61,597.08 is: 85,004.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,897.08 : 154,419.02 = 61,597.08 : x
  2. Step 2: Convert to fraction form
    111,897.08/154,419.02 = 61,597.08/x
  3. Step 3: Cross multiply
    111,897.08x = 154,419.02 × 61,597.08
  4. Step 4: Simplify right side
    111,897.08x = 9,511,760,728.46
  5. Step 5: Solve for x
    x = 9,511,760,728.46/111,897.08
  6. Step 6: Final answer
    x = 85,004.55

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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.