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Finding the Fourth Proportional to 92,289.60, 127,364.94 and 56,469.60

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Solution

The fourth proportional to 92,289.60, 127,364.94 and 56,469.60 is: 77,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,289.60 : 127,364.94 = 56,469.60 : x
  2. Step 2: Convert to fraction form
    92,289.60/127,364.94 = 56,469.60/x
  3. Step 3: Cross multiply
    92,289.60x = 127,364.94 × 56,469.60
  4. Step 4: Simplify right side
    92,289.60x = 7,192,247,215.82
  5. Step 5: Solve for x
    x = 7,192,247,215.82/92,289.60
  6. Step 6: Final answer
    x = 77,931.29

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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.