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Finding the Fourth Proportional to 105,132.40, 157,698.60 and 96,530.80

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Solution

The fourth proportional to 105,132.40, 157,698.60 and 96,530.80 is: 144,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,132.40 : 157,698.60 = 96,530.80 : x
  2. Step 2: Convert to fraction form
    105,132.40/157,698.60 = 96,530.80/x
  3. Step 3: Cross multiply
    105,132.40x = 157,698.60 × 96,530.80
  4. Step 4: Simplify right side
    105,132.40x = 15,222,772,016.88
  5. Step 5: Solve for x
    x = 15,222,772,016.88/105,132.40
  6. Step 6: Final answer
    x = 144,796.20

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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.