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Finding the Fourth Proportional to 112,367.40, 168,551.10 and 101,999.40

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Solution

The fourth proportional to 112,367.40, 168,551.10 and 101,999.40 is: 152,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,367.40 : 168,551.10 = 101,999.40 : x
  2. Step 2: Convert to fraction form
    112,367.40/168,551.10 = 101,999.40/x
  3. Step 3: Cross multiply
    112,367.40x = 168,551.10 × 101,999.40
  4. Step 4: Simplify right side
    112,367.40x = 17,192,111,069.34
  5. Step 5: Solve for x
    x = 17,192,111,069.34/112,367.40
  6. Step 6: Final answer
    x = 152,999.10

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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.