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Finding the Fourth Proportional to 111,901.08, 154,422.54 and 61,599

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Solution

The fourth proportional to 111,901.08, 154,422.54 and 61,599 is: 85,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,901.08 : 154,422.54 = 61,599 : x
  2. Step 2: Convert to fraction form
    111,901.08/154,422.54 = 61,599/x
  3. Step 3: Cross multiply
    111,901.08x = 154,422.54 × 61,599
  4. Step 4: Simplify right side
    111,901.08x = 9,512,274,041.46
  5. Step 5: Solve for x
    x = 9,512,274,041.46/111,901.08
  6. Step 6: Final answer
    x = 85,006.10

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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.