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Finding the Fourth Proportional to 223,939.98, 309,045.96 and 127,152.90

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Solution

The fourth proportional to 223,939.98, 309,045.96 and 127,152.90 is: 175,475.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,939.98 : 309,045.96 = 127,152.90 : x
  2. Step 2: Convert to fraction form
    223,939.98/309,045.96 = 127,152.90/x
  3. Step 3: Cross multiply
    223,939.98x = 309,045.96 × 127,152.90
  4. Step 4: Simplify right side
    223,939.98x = 39,296,090,047.28
  5. Step 5: Solve for x
    x = 39,296,090,047.28/223,939.98
  6. Step 6: Final answer
    x = 175,475.99

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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.