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Finding the Fourth Proportional to 92,892.44, 128,244.72 and 61,153.60

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Solution

The fourth proportional to 92,892.44, 128,244.72 and 61,153.60 is: 84,426.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,892.44 : 128,244.72 = 61,153.60 : x
  2. Step 2: Convert to fraction form
    92,892.44/128,244.72 = 61,153.60/x
  3. Step 3: Cross multiply
    92,892.44x = 128,244.72 × 61,153.60
  4. Step 4: Simplify right side
    92,892.44x = 7,842,626,308.99
  5. Step 5: Solve for x
    x = 7,842,626,308.99/92,892.44
  6. Step 6: Final answer
    x = 84,426.96

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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.