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Finding the Fourth Proportional to 268,460.70, 370,478.16 and 145,953.34

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Solution

The fourth proportional to 268,460.70, 370,478.16 and 145,953.34 is: 201,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,460.70 : 370,478.16 = 145,953.34 : x
  2. Step 2: Convert to fraction form
    268,460.70/370,478.16 = 145,953.34/x
  3. Step 3: Cross multiply
    268,460.70x = 370,478.16 × 145,953.34
  4. Step 4: Simplify right side
    268,460.70x = 54,072,524,849.05
  5. Step 5: Solve for x
    x = 54,072,524,849.05/268,460.70
  6. Step 6: Final answer
    x = 201,416.91

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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.