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Finding the Fourth Proportional to 308,025.84, 425,089.80 and 170,224.14

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Solution

The fourth proportional to 308,025.84, 425,089.80 and 170,224.14 is: 234,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,025.84 : 425,089.80 = 170,224.14 : x
  2. Step 2: Convert to fraction form
    308,025.84/425,089.80 = 170,224.14/x
  3. Step 3: Cross multiply
    308,025.84x = 425,089.80 × 170,224.14
  4. Step 4: Simplify right side
    308,025.84x = 72,360,545,627.77
  5. Step 5: Solve for x
    x = 72,360,545,627.77/308,025.84
  6. Step 6: Final answer
    x = 234,917.13

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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.