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Finding the Fourth Proportional to 242,075.92, 363,123.64 and 84,320.32

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Solution

The fourth proportional to 242,075.92, 363,123.64 and 84,320.32 is: 126,483.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,075.92 : 363,123.64 = 84,320.32 : x
  2. Step 2: Convert to fraction form
    242,075.92/363,123.64 = 84,320.32/x
  3. Step 3: Cross multiply
    242,075.92x = 363,123.64 × 84,320.32
  4. Step 4: Simplify right side
    242,075.92x = 30,618,701,524.36
  5. Step 5: Solve for x
    x = 30,618,701,524.36/242,075.92
  6. Step 6: Final answer
    x = 126,483.88

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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.