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Finding the Fourth Proportional to 118,666.94, 178,000.55 and 43,754.63

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Solution

The fourth proportional to 118,666.94, 178,000.55 and 43,754.63 is: 65,631.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,666.94 : 178,000.55 = 43,754.63 : x
  2. Step 2: Convert to fraction form
    118,666.94/178,000.55 = 43,754.63/x
  3. Step 3: Cross multiply
    118,666.94x = 178,000.55 × 43,754.63
  4. Step 4: Simplify right side
    118,666.94x = 7,788,347,986.27
  5. Step 5: Solve for x
    x = 7,788,347,986.27/118,666.94
  6. Step 6: Final answer
    x = 65,631.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.