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Finding the Fourth Proportional to 326,359.53, 489,529.04 and 89,700.17

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Solution

The fourth proportional to 326,359.53, 489,529.04 and 89,700.17 is: 134,547.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,359.53 : 489,529.04 = 89,700.17 : x
  2. Step 2: Convert to fraction form
    326,359.53/489,529.04 = 89,700.17/x
  3. Step 3: Cross multiply
    326,359.53x = 489,529.04 × 89,700.17
  4. Step 4: Simplify right side
    326,359.53x = 43,910,835,211.79
  5. Step 5: Solve for x
    x = 43,910,835,211.79/326,359.53
  6. Step 6: Final answer
    x = 134,547.43

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Why These Related Problems?

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