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Finding the Fourth Proportional to 93,690.71, 140,536.75 and 27,130.74

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Solution

The fourth proportional to 93,690.71, 140,536.75 and 27,130.74 is: 40,696.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,690.71 : 140,536.75 = 27,130.74 : x
  2. Step 2: Convert to fraction form
    93,690.71/140,536.75 = 27,130.74/x
  3. Step 3: Cross multiply
    93,690.71x = 140,536.75 × 27,130.74
  4. Step 4: Simplify right side
    93,690.71x = 3,812,866,024.70
  5. Step 5: Solve for x
    x = 3,812,866,024.70/93,690.71
  6. Step 6: Final answer
    x = 40,696.31

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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.