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Finding the Fourth Proportional to 310,612.41, 465,828.55 and 121,030.49

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Solution

The fourth proportional to 310,612.41, 465,828.55 and 121,030.49 is: 181,510.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,612.41 : 465,828.55 = 121,030.49 : x
  2. Step 2: Convert to fraction form
    310,612.41/465,828.55 = 121,030.49/x
  3. Step 3: Cross multiply
    310,612.41x = 465,828.55 × 121,030.49
  4. Step 4: Simplify right side
    310,612.41x = 56,379,457,662.49
  5. Step 5: Solve for x
    x = 56,379,457,662.49/310,612.41
  6. Step 6: Final answer
    x = 181,510.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.