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Finding the Fourth Proportional to 242,133.88, 362,138.64 and 215,666.32

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Solution

The fourth proportional to 242,133.88, 362,138.64 and 215,666.32 is: 322,553.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,133.88 : 362,138.64 = 215,666.32 : x
  2. Step 2: Convert to fraction form
    242,133.88/362,138.64 = 215,666.32/x
  3. Step 3: Cross multiply
    242,133.88x = 362,138.64 × 215,666.32
  4. Step 4: Simplify right side
    242,133.88x = 78,101,107,818.60
  5. Step 5: Solve for x
    x = 78,101,107,818.60/242,133.88
  6. Step 6: Final answer
    x = 322,553.41

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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.