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Finding the Fourth Proportional to 328,521.81, 453,359.90 and 185,281.51

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Solution

The fourth proportional to 328,521.81, 453,359.90 and 185,281.51 is: 255,688.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,521.81 : 453,359.90 = 185,281.51 : x
  2. Step 2: Convert to fraction form
    328,521.81/453,359.90 = 185,281.51/x
  3. Step 3: Cross multiply
    328,521.81x = 453,359.90 × 185,281.51
  4. Step 4: Simplify right side
    328,521.81x = 83,999,206,845.45
  5. Step 5: Solve for x
    x = 83,999,206,845.45/328,521.81
  6. Step 6: Final answer
    x = 255,688.37

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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.