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Finding the Fourth Proportional to 112,041.40, 156,974.60 and 112,041.40

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Solution

The fourth proportional to 112,041.40, 156,974.60 and 112,041.40 is: 156,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,041.40 : 156,974.60 = 112,041.40 : x
  2. Step 2: Convert to fraction form
    112,041.40/156,974.60 = 112,041.40/x
  3. Step 3: Cross multiply
    112,041.40x = 156,974.60 × 112,041.40
  4. Step 4: Simplify right side
    112,041.40x = 17,587,653,948.44
  5. Step 5: Solve for x
    x = 17,587,653,948.44/112,041.40
  6. Step 6: Final answer
    x = 156,974.60

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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.