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Finding the Fourth Proportional to 235,614.61, 325,143.68 and 130,835.04

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Solution

The fourth proportional to 235,614.61, 325,143.68 and 130,835.04 is: 180,549.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,614.61 : 325,143.68 = 130,835.04 : x
  2. Step 2: Convert to fraction form
    235,614.61/325,143.68 = 130,835.04/x
  3. Step 3: Cross multiply
    235,614.61x = 325,143.68 × 130,835.04
  4. Step 4: Simplify right side
    235,614.61x = 42,540,186,378.55
  5. Step 5: Solve for x
    x = 42,540,186,378.55/235,614.61
  6. Step 6: Final answer
    x = 180,549.87

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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.