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Finding the Fourth Proportional to 93,107.56, 139,551.46 and 39,783.95

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Solution

The fourth proportional to 93,107.56, 139,551.46 and 39,783.95 is: 59,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,107.56 : 139,551.46 = 39,783.95 : x
  2. Step 2: Convert to fraction form
    93,107.56/139,551.46 = 39,783.95/x
  3. Step 3: Cross multiply
    93,107.56x = 139,551.46 × 39,783.95
  4. Step 4: Simplify right side
    93,107.56x = 5,551,908,307.07
  5. Step 5: Solve for x
    x = 5,551,908,307.07/93,107.56
  6. Step 6: Final answer
    x = 59,628.97

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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.