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Finding the Fourth Proportional to 210,416.68, 315,616.38 and 116,862.76

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Solution

The fourth proportional to 210,416.68, 315,616.38 and 116,862.76 is: 175,289.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,416.68 : 315,616.38 = 116,862.76 : x
  2. Step 2: Convert to fraction form
    210,416.68/315,616.38 = 116,862.76/x
  3. Step 3: Cross multiply
    210,416.68x = 315,616.38 × 116,862.76
  4. Step 4: Simplify right side
    210,416.68x = 36,883,801,268.01
  5. Step 5: Solve for x
    x = 36,883,801,268.01/210,416.68
  6. Step 6: Final answer
    x = 175,289.34

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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.