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Finding the Fourth Proportional to 93,340.92, 128,813.58 and 50,901.78

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Solution

The fourth proportional to 93,340.92, 128,813.58 and 50,901.78 is: 70,246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,340.92 : 128,813.58 = 50,901.78 : x
  2. Step 2: Convert to fraction form
    93,340.92/128,813.58 = 50,901.78/x
  3. Step 3: Cross multiply
    93,340.92x = 128,813.58 × 50,901.78
  4. Step 4: Simplify right side
    93,340.92x = 6,556,840,510.17
  5. Step 5: Solve for x
    x = 6,556,840,510.17/93,340.92
  6. Step 6: Final answer
    x = 70,246.15

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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.