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Finding the Fourth Proportional to 169,912.80, 234,485.70 and 93,437.70

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Solution

The fourth proportional to 169,912.80, 234,485.70 and 93,437.70 is: 128,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,912.80 : 234,485.70 = 93,437.70 : x
  2. Step 2: Convert to fraction form
    169,912.80/234,485.70 = 93,437.70/x
  3. Step 3: Cross multiply
    169,912.80x = 234,485.70 × 93,437.70
  4. Step 4: Simplify right side
    169,912.80x = 21,909,804,490.89
  5. Step 5: Solve for x
    x = 21,909,804,490.89/169,912.80
  6. Step 6: Final answer
    x = 128,947.35

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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.