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Finding the Fourth Proportional to 112,034.40, 168,116.40 and 41,920.80

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Solution

The fourth proportional to 112,034.40, 168,116.40 and 41,920.80 is: 62,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,034.40 : 168,116.40 = 41,920.80 : x
  2. Step 2: Convert to fraction form
    112,034.40/168,116.40 = 41,920.80/x
  3. Step 3: Cross multiply
    112,034.40x = 168,116.40 × 41,920.80
  4. Step 4: Simplify right side
    112,034.40x = 7,047,573,981.12
  5. Step 5: Solve for x
    x = 7,047,573,981.12/112,034.40
  6. Step 6: Final answer
    x = 62,905.45

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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.