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Finding the Fourth Proportional to 366,912.80, 549,931.80 and 153,680.30

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Solution

The fourth proportional to 366,912.80, 549,931.80 and 153,680.30 is: 230,337.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,912.80 : 549,931.80 = 153,680.30 : x
  2. Step 2: Convert to fraction form
    366,912.80/549,931.80 = 153,680.30/x
  3. Step 3: Cross multiply
    366,912.80x = 549,931.80 × 153,680.30
  4. Step 4: Simplify right side
    366,912.80x = 84,513,684,003.54
  5. Step 5: Solve for x
    x = 84,513,684,003.54/366,912.80
  6. Step 6: Final answer
    x = 230,337.25

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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.