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Finding the Fourth Proportional to 121,562.94, 182,425.84 and 42,677.40

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Solution

The fourth proportional to 121,562.94, 182,425.84 and 42,677.40 is: 64,044.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,562.94 : 182,425.84 = 42,677.40 : x
  2. Step 2: Convert to fraction form
    121,562.94/182,425.84 = 42,677.40/x
  3. Step 3: Cross multiply
    121,562.94x = 182,425.84 × 42,677.40
  4. Step 4: Simplify right side
    121,562.94x = 7,785,460,544.02
  5. Step 5: Solve for x
    x = 7,785,460,544.02/121,562.94
  6. Step 6: Final answer
    x = 64,044.69

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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.