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Finding the Fourth Proportional to 242,063.81, 334,064.75 and 134,643.84

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Solution

The fourth proportional to 242,063.81, 334,064.75 and 134,643.84 is: 185,817.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,063.81 : 334,064.75 = 134,643.84 : x
  2. Step 2: Convert to fraction form
    242,063.81/334,064.75 = 134,643.84/x
  3. Step 3: Cross multiply
    242,063.81x = 334,064.75 × 134,643.84
  4. Step 4: Simplify right side
    242,063.81x = 44,979,760,075.42
  5. Step 5: Solve for x
    x = 44,979,760,075.42/242,063.81
  6. Step 6: Final answer
    x = 185,817.79

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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.