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Finding the Fourth Proportional to 113,999.90, 159,862.30 and 113,999.90

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Solution

The fourth proportional to 113,999.90, 159,862.30 and 113,999.90 is: 159,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,999.90 : 159,862.30 = 113,999.90 : x
  2. Step 2: Convert to fraction form
    113,999.90/159,862.30 = 113,999.90/x
  3. Step 3: Cross multiply
    113,999.90x = 159,862.30 × 113,999.90
  4. Step 4: Simplify right side
    113,999.90x = 18,224,286,213.77
  5. Step 5: Solve for x
    x = 18,224,286,213.77/113,999.90
  6. Step 6: Final answer
    x = 159,862.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.