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Finding the Fourth Proportional to 282,250.56, 389,510.18 and 154,937.76

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Solution

The fourth proportional to 282,250.56, 389,510.18 and 154,937.76 is: 213,816.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,250.56 : 389,510.18 = 154,937.76 : x
  2. Step 2: Convert to fraction form
    282,250.56/389,510.18 = 154,937.76/x
  3. Step 3: Cross multiply
    282,250.56x = 389,510.18 × 154,937.76
  4. Step 4: Simplify right side
    282,250.56x = 60,349,834,786.40
  5. Step 5: Solve for x
    x = 60,349,834,786.40/282,250.56
  6. Step 6: Final answer
    x = 213,816.53

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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.