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Finding the Fourth Proportional to 334,563.30, 501,678.90 and 121,322.70

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Solution

The fourth proportional to 334,563.30, 501,678.90 and 121,322.70 is: 181,923.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,563.30 : 501,678.90 = 121,322.70 : x
  2. Step 2: Convert to fraction form
    334,563.30/501,678.90 = 121,322.70/x
  3. Step 3: Cross multiply
    334,563.30x = 501,678.90 × 121,322.70
  4. Step 4: Simplify right side
    334,563.30x = 60,865,038,681.03
  5. Step 5: Solve for x
    x = 60,865,038,681.03/334,563.30
  6. Step 6: Final answer
    x = 181,923.84

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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.