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Finding the Fourth Proportional to 93,336.70, 128,814.51 and 57,059.38

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Solution

The fourth proportional to 93,336.70, 128,814.51 and 57,059.38 is: 78,747.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,336.70 : 128,814.51 = 57,059.38 : x
  2. Step 2: Convert to fraction form
    93,336.70/128,814.51 = 57,059.38/x
  3. Step 3: Cross multiply
    93,336.70x = 128,814.51 × 57,059.38
  4. Step 4: Simplify right side
    93,336.70x = 7,350,076,075.60
  5. Step 5: Solve for x
    x = 7,350,076,075.60/93,336.70
  6. Step 6: Final answer
    x = 78,747.97

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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.