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Finding the Fourth Proportional to 328,095.50, 492,143.26 and 106,479.50

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Solution

The fourth proportional to 328,095.50, 492,143.26 and 106,479.50 is: 159,719.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,095.50 : 492,143.26 = 106,479.50 : x
  2. Step 2: Convert to fraction form
    328,095.50/492,143.26 = 106,479.50/x
  3. Step 3: Cross multiply
    328,095.50x = 492,143.26 × 106,479.50
  4. Step 4: Simplify right side
    328,095.50x = 52,403,168,253.17
  5. Step 5: Solve for x
    x = 52,403,168,253.17/328,095.50
  6. Step 6: Final answer
    x = 159,719.25

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1.5x scale

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.