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Finding the Fourth Proportional to 243,226.04, 364,801.62 and 81,122.94

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Solution

The fourth proportional to 243,226.04, 364,801.62 and 81,122.94 is: 121,671.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,226.04 : 364,801.62 = 81,122.94 : x
  2. Step 2: Convert to fraction form
    243,226.04/364,801.62 = 81,122.94/x
  3. Step 3: Cross multiply
    243,226.04x = 364,801.62 × 81,122.94
  4. Step 4: Simplify right side
    243,226.04x = 29,593,779,931.16
  5. Step 5: Solve for x
    x = 29,593,779,931.16/243,226.04
  6. Step 6: Final answer
    x = 121,671.93

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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.