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Finding the Fourth Proportional to 93,143.98, 128,535.42 and 50,701.60

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Solution

The fourth proportional to 93,143.98, 128,535.42 and 50,701.60 is: 69,966.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,143.98 : 128,535.42 = 50,701.60 : x
  2. Step 2: Convert to fraction form
    93,143.98/128,535.42 = 50,701.60/x
  3. Step 3: Cross multiply
    93,143.98x = 128,535.42 × 50,701.60
  4. Step 4: Simplify right side
    93,143.98x = 6,516,951,450.67
  5. Step 5: Solve for x
    x = 6,516,951,450.67/93,143.98
  6. Step 6: Final answer
    x = 69,966.43

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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.