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Finding the Fourth Proportional to 319,484.01, 440,880.83 and 176,244.01

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Solution

The fourth proportional to 319,484.01, 440,880.83 and 176,244.01 is: 243,212.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,484.01 : 440,880.83 = 176,244.01 : x
  2. Step 2: Convert to fraction form
    319,484.01/440,880.83 = 176,244.01/x
  3. Step 3: Cross multiply
    319,484.01x = 440,880.83 × 176,244.01
  4. Step 4: Simplify right side
    319,484.01x = 77,702,606,403.04
  5. Step 5: Solve for x
    x = 77,702,606,403.04/319,484.01
  6. Step 6: Final answer
    x = 243,212.82

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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.