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Finding the Fourth Proportional to 210,100.92, 289,941.12 and 114,608.04

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Solution

The fourth proportional to 210,100.92, 289,941.12 and 114,608.04 is: 158,160.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,100.92 : 289,941.12 = 114,608.04 : x
  2. Step 2: Convert to fraction form
    210,100.92/289,941.12 = 114,608.04/x
  3. Step 3: Cross multiply
    210,100.92x = 289,941.12 × 114,608.04
  4. Step 4: Simplify right side
    210,100.92x = 33,229,583,478.60
  5. Step 5: Solve for x
    x = 33,229,583,478.60/210,100.92
  6. Step 6: Final answer
    x = 158,160.10

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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.