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Finding the Fourth Proportional to 112,040.40, 156,973.20 and 112,040.40

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Solution

The fourth proportional to 112,040.40, 156,973.20 and 112,040.40 is: 156,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,040.40 : 156,973.20 = 112,040.40 : x
  2. Step 2: Convert to fraction form
    112,040.40/156,973.20 = 112,040.40/x
  3. Step 3: Cross multiply
    112,040.40x = 156,973.20 × 112,040.40
  4. Step 4: Simplify right side
    112,040.40x = 17,587,340,117.28
  5. Step 5: Solve for x
    x = 17,587,340,117.28/112,040.40
  6. Step 6: Final answer
    x = 156,973.20

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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.