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Finding the Fourth Proportional to 303,374.59, 418,740.21 and 176,091.19

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Solution

The fourth proportional to 303,374.59, 418,740.21 and 176,091.19 is: 243,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,374.59 : 418,740.21 = 176,091.19 : x
  2. Step 2: Convert to fraction form
    303,374.59/418,740.21 = 176,091.19/x
  3. Step 3: Cross multiply
    303,374.59x = 418,740.21 × 176,091.19
  4. Step 4: Simplify right side
    303,374.59x = 73,736,460,832.90
  5. Step 5: Solve for x
    x = 73,736,460,832.90/303,374.59
  6. Step 6: Final answer
    x = 243,054.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.