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Finding the Fourth Proportional to 93,690.60, 140,535.90 and 54,348.90

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Solution

The fourth proportional to 93,690.60, 140,535.90 and 54,348.90 is: 81,523.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,690.60 : 140,535.90 = 54,348.90 : x
  2. Step 2: Convert to fraction form
    93,690.60/140,535.90 = 54,348.90/x
  3. Step 3: Cross multiply
    93,690.60x = 140,535.90 × 54,348.90
  4. Step 4: Simplify right side
    93,690.60x = 7,637,971,575.51
  5. Step 5: Solve for x
    x = 7,637,971,575.51/93,690.60
  6. Step 6: Final answer
    x = 81,523.35

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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.