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Finding the Fourth Proportional to 310,804.21, 466,136.92 and 121,269.61

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Solution

The fourth proportional to 310,804.21, 466,136.92 and 121,269.61 is: 181,877.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,804.21 : 466,136.92 = 121,269.61 : x
  2. Step 2: Convert to fraction form
    310,804.21/466,136.92 = 121,269.61/x
  3. Step 3: Cross multiply
    310,804.21x = 466,136.92 × 121,269.61
  4. Step 4: Simplify right side
    310,804.21x = 56,528,242,495.00
  5. Step 5: Solve for x
    x = 56,528,242,495.00/310,804.21
  6. Step 6: Final answer
    x = 181,877.34

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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.