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Finding the Fourth Proportional to 308,015.61, 425,060.51 and 178,972.89

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Solution

The fourth proportional to 308,015.61, 425,060.51 and 178,972.89 is: 246,981.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,015.61 : 425,060.51 = 178,972.89 : x
  2. Step 2: Convert to fraction form
    308,015.61/425,060.51 = 178,972.89/x
  3. Step 3: Cross multiply
    308,015.61x = 425,060.51 × 178,972.89
  4. Step 4: Simplify right side
    308,015.61x = 76,074,307,004.71
  5. Step 5: Solve for x
    x = 76,074,307,004.71/308,015.61
  6. Step 6: Final answer
    x = 246,981.99

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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.