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Finding the Fourth Proportional to 93,336.14, 128,806.53 and 50,897

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Solution

The fourth proportional to 93,336.14, 128,806.53 and 50,897 is: 70,239.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,336.14 : 128,806.53 = 50,897 : x
  2. Step 2: Convert to fraction form
    93,336.14/128,806.53 = 50,897/x
  3. Step 3: Cross multiply
    93,336.14x = 128,806.53 × 50,897
  4. Step 4: Simplify right side
    93,336.14x = 6,555,865,957.41
  5. Step 5: Solve for x
    x = 6,555,865,957.41/93,336.14
  6. Step 6: Final answer
    x = 70,239.31

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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.