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Finding the Fourth Proportional to 93,312.40, 139,967.96 and 23,191.60

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Solution

The fourth proportional to 93,312.40, 139,967.96 and 23,191.60 is: 34,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312.40 : 139,967.96 = 23,191.60 : x
  2. Step 2: Convert to fraction form
    93,312.40/139,967.96 = 23,191.60/x
  3. Step 3: Cross multiply
    93,312.40x = 139,967.96 × 23,191.60
  4. Step 4: Simplify right side
    93,312.40x = 3,246,080,941.14
  5. Step 5: Solve for x
    x = 3,246,080,941.14/93,312.40
  6. Step 6: Final answer
    x = 34,787.24

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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.