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Finding the Fourth Proportional to 93,104.31, 128,483.95 and 50,663.15

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Solution

The fourth proportional to 93,104.31, 128,483.95 and 50,663.15 is: 69,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,104.31 : 128,483.95 = 50,663.15 : x
  2. Step 2: Convert to fraction form
    93,104.31/128,483.95 = 50,663.15/x
  3. Step 3: Cross multiply
    93,104.31x = 128,483.95 × 50,663.15
  4. Step 4: Simplify right side
    93,104.31x = 6,509,401,631.44
  5. Step 5: Solve for x
    x = 6,509,401,631.44/93,104.31
  6. Step 6: Final answer
    x = 69,915.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.