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Finding the Fourth Proportional to 155,592.80, 232,870.80 and 136,930.40

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Solution

The fourth proportional to 155,592.80, 232,870.80 and 136,930.40 is: 204,939.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,592.80 : 232,870.80 = 136,930.40 : x
  2. Step 2: Convert to fraction form
    155,592.80/232,870.80 = 136,930.40/x
  3. Step 3: Cross multiply
    155,592.80x = 232,870.80 × 136,930.40
  4. Step 4: Simplify right side
    155,592.80x = 31,887,091,792.32
  5. Step 5: Solve for x
    x = 31,887,091,792.32/155,592.80
  6. Step 6: Final answer
    x = 204,939.38

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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.