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Finding the Fourth Proportional to 202,511.60, 279,460.32 and 111,866.16

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Solution

The fourth proportional to 202,511.60, 279,460.32 and 111,866.16 is: 154,372.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,511.60 : 279,460.32 = 111,866.16 : x
  2. Step 2: Convert to fraction form
    202,511.60/279,460.32 = 111,866.16/x
  3. Step 3: Cross multiply
    202,511.60x = 279,460.32 × 111,866.16
  4. Step 4: Simplify right side
    202,511.60x = 31,262,152,870.77
  5. Step 5: Solve for x
    x = 31,262,152,870.77/202,511.60
  6. Step 6: Final answer
    x = 154,372.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.