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Finding the Fourth Proportional to 115,209.58, 158,992.59 and 67,458.46

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Solution

The fourth proportional to 115,209.58, 158,992.59 and 67,458.46 is: 93,094.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,209.58 : 158,992.59 = 67,458.46 : x
  2. Step 2: Convert to fraction form
    115,209.58/158,992.59 = 67,458.46/x
  3. Step 3: Cross multiply
    115,209.58x = 158,992.59 × 67,458.46
  4. Step 4: Simplify right side
    115,209.58x = 10,725,395,272.81
  5. Step 5: Solve for x
    x = 10,725,395,272.81/115,209.58
  6. Step 6: Final answer
    x = 93,094.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.