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Finding the Fourth Proportional to 112,041.90, 156,975.30 and 112,041.90

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Solution

The fourth proportional to 112,041.90, 156,975.30 and 112,041.90 is: 156,975.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,041.90 : 156,975.30 = 112,041.90 : x
  2. Step 2: Convert to fraction form
    112,041.90/156,975.30 = 112,041.90/x
  3. Step 3: Cross multiply
    112,041.90x = 156,975.30 × 112,041.90
  4. Step 4: Simplify right side
    112,041.90x = 17,587,810,865.07
  5. Step 5: Solve for x
    x = 17,587,810,865.07/112,041.90
  6. Step 6: Final answer
    x = 156,975.30

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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.