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Finding the Fourth Proportional to 92,120.94, 127,142.37 and 53,353.08

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Solution

The fourth proportional to 92,120.94, 127,142.37 and 53,353.08 is: 73,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,120.94 : 127,142.37 = 53,353.08 : x
  2. Step 2: Convert to fraction form
    92,120.94/127,142.37 = 53,353.08/x
  3. Step 3: Cross multiply
    92,120.94x = 127,142.37 × 53,353.08
  4. Step 4: Simplify right side
    92,120.94x = 6,783,437,038.00
  5. Step 5: Solve for x
    x = 6,783,437,038.00/92,120.94
  6. Step 6: Final answer
    x = 73,636.21

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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.