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Finding the Fourth Proportional to 236,158.56, 354,160.80 and 78,344.64

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Solution

The fourth proportional to 236,158.56, 354,160.80 and 78,344.64 is: 117,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,158.56 : 354,160.80 = 78,344.64 : x
  2. Step 2: Convert to fraction form
    236,158.56/354,160.80 = 78,344.64/x
  3. Step 3: Cross multiply
    236,158.56x = 354,160.80 × 78,344.64
  4. Step 4: Simplify right side
    236,158.56x = 27,746,600,378.11
  5. Step 5: Solve for x
    x = 27,746,600,378.11/236,158.56
  6. Step 6: Final answer
    x = 117,491.40

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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.