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Finding the Fourth Proportional to 319,482.16, 440,885.84 and 176,241.92

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Solution

The fourth proportional to 319,482.16, 440,885.84 and 176,241.92 is: 243,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,482.16 : 440,885.84 = 176,241.92 : x
  2. Step 2: Convert to fraction form
    319,482.16/440,885.84 = 176,241.92/x
  3. Step 3: Cross multiply
    319,482.16x = 440,885.84 × 176,241.92
  4. Step 4: Simplify right side
    319,482.16x = 77,702,566,942.41
  5. Step 5: Solve for x
    x = 77,702,566,942.41/319,482.16
  6. Step 6: Final answer
    x = 243,214.10

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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.