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Finding the Fourth Proportional to 195,428.80, 292,912.80 and 101,886.40

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Solution

The fourth proportional to 195,428.80, 292,912.80 and 101,886.40 is: 152,709.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,428.80 : 292,912.80 = 101,886.40 : x
  2. Step 2: Convert to fraction form
    195,428.80/292,912.80 = 101,886.40/x
  3. Step 3: Cross multiply
    195,428.80x = 292,912.80 × 101,886.40
  4. Step 4: Simplify right side
    195,428.80x = 29,843,830,705.92
  5. Step 5: Solve for x
    x = 29,843,830,705.92/195,428.80
  6. Step 6: Final answer
    x = 152,709.48

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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.