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Finding the Fourth Proportional to 127,666.60, 191,730.30 and 92,645.80

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Solution

The fourth proportional to 127,666.60, 191,730.30 and 92,645.80 is: 139,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,666.60 : 191,730.30 = 92,645.80 : x
  2. Step 2: Convert to fraction form
    127,666.60/191,730.30 = 92,645.80/x
  3. Step 3: Cross multiply
    127,666.60x = 191,730.30 × 92,645.80
  4. Step 4: Simplify right side
    127,666.60x = 17,763,007,027.74
  5. Step 5: Solve for x
    x = 17,763,007,027.74/127,666.60
  6. Step 6: Final answer
    x = 139,135.90

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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.