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Finding the Fourth Proportional to 114,943.60, 172,026.60 and 100,946.80

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Solution

The fourth proportional to 114,943.60, 172,026.60 and 100,946.80 is: 151,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,943.60 : 172,026.60 = 100,946.80 : x
  2. Step 2: Convert to fraction form
    114,943.60/172,026.60 = 100,946.80/x
  3. Step 3: Cross multiply
    114,943.60x = 172,026.60 × 100,946.80
  4. Step 4: Simplify right side
    114,943.60x = 17,365,534,784.88
  5. Step 5: Solve for x
    x = 17,365,534,784.88/114,943.60
  6. Step 6: Final answer
    x = 151,078.74

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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.