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Finding the Fourth Proportional to 253,814.48, 350,258.76 and 140,636.24

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Solution

The fourth proportional to 253,814.48, 350,258.76 and 140,636.24 is: 194,075.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,814.48 : 350,258.76 = 140,636.24 : x
  2. Step 2: Convert to fraction form
    253,814.48/350,258.76 = 140,636.24/x
  3. Step 3: Cross multiply
    253,814.48x = 350,258.76 × 140,636.24
  4. Step 4: Simplify right side
    253,814.48x = 49,259,075,033.46
  5. Step 5: Solve for x
    x = 49,259,075,033.46/253,814.48
  6. Step 6: Final answer
    x = 194,075.12

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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.