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Finding the Fourth Proportional to 232,458.40, 348,736.20 and 74,702.80

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Solution

The fourth proportional to 232,458.40, 348,736.20 and 74,702.80 is: 112,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,458.40 : 348,736.20 = 74,702.80 : x
  2. Step 2: Convert to fraction form
    232,458.40/348,736.20 = 74,702.80/x
  3. Step 3: Cross multiply
    232,458.40x = 348,736.20 × 74,702.80
  4. Step 4: Simplify right side
    232,458.40x = 26,051,570,601.36
  5. Step 5: Solve for x
    x = 26,051,570,601.36/232,458.40
  6. Step 6: Final answer
    x = 112,069.82

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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.