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Finding the Fourth Proportional to 209,888.04, 289,651.64 and 114,400.92

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Solution

The fourth proportional to 209,888.04, 289,651.64 and 114,400.92 is: 157,876.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,888.04 : 289,651.64 = 114,400.92 : x
  2. Step 2: Convert to fraction form
    209,888.04/289,651.64 = 114,400.92/x
  3. Step 3: Cross multiply
    209,888.04x = 289,651.64 × 114,400.92
  4. Step 4: Simplify right side
    209,888.04x = 33,136,414,095.51
  5. Step 5: Solve for x
    x = 33,136,414,095.51/209,888.04
  6. Step 6: Final answer
    x = 157,876.62

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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.