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Finding the Fourth Proportional to 93,138.63, 139,706.58 and 23,017.95

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Solution

The fourth proportional to 93,138.63, 139,706.58 and 23,017.95 is: 34,526.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,138.63 : 139,706.58 = 23,017.95 : x
  2. Step 2: Convert to fraction form
    93,138.63/139,706.58 = 23,017.95/x
  3. Step 3: Cross multiply
    93,138.63x = 139,706.58 × 23,017.95
  4. Step 4: Simplify right side
    93,138.63x = 3,215,759,073.11
  5. Step 5: Solve for x
    x = 3,215,759,073.11/93,138.63
  6. Step 6: Final answer
    x = 34,526.59

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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.