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Finding the Fourth Proportional to 93,246.29, 139,870.40 and 74,644.57

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Solution

The fourth proportional to 93,246.29, 139,870.40 and 74,644.57 is: 111,967.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,246.29 : 139,870.40 = 74,644.57 : x
  2. Step 2: Convert to fraction form
    93,246.29/139,870.40 = 74,644.57/x
  3. Step 3: Cross multiply
    93,246.29x = 139,870.40 × 74,644.57
  4. Step 4: Simplify right side
    93,246.29x = 10,440,566,225.18
  5. Step 5: Solve for x
    x = 10,440,566,225.18/93,246.29
  6. Step 6: Final answer
    x = 111,967.64

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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.