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Finding the Fourth Proportional to 169,013.95, 253,438.90 and 84,737.90

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Solution

The fourth proportional to 169,013.95, 253,438.90 and 84,737.90 is: 127,065.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,013.95 : 253,438.90 = 84,737.90 : x
  2. Step 2: Convert to fraction form
    169,013.95/253,438.90 = 84,737.90/x
  3. Step 3: Cross multiply
    169,013.95x = 253,438.90 × 84,737.90
  4. Step 4: Simplify right side
    169,013.95x = 21,475,880,164.31
  5. Step 5: Solve for x
    x = 21,475,880,164.31/169,013.95
  6. Step 6: Final answer
    x = 127,065.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.