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Finding the Fourth Proportional to 112,009.40, 168,043.80 and 48,802.40

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Solution

The fourth proportional to 112,009.40, 168,043.80 and 48,802.40 is: 73,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,009.40 : 168,043.80 = 48,802.40 : x
  2. Step 2: Convert to fraction form
    112,009.40/168,043.80 = 48,802.40/x
  3. Step 3: Cross multiply
    112,009.40x = 168,043.80 × 48,802.40
  4. Step 4: Simplify right side
    112,009.40x = 8,200,940,745.12
  5. Step 5: Solve for x
    x = 8,200,940,745.12/112,009.40
  6. Step 6: Final answer
    x = 73,216.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.