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Finding the Fourth Proportional to 366,459.72, 549,587.52 and 129,738.84

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Solution

The fourth proportional to 366,459.72, 549,587.52 and 129,738.84 is: 194,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,459.72 : 549,587.52 = 129,738.84 : x
  2. Step 2: Convert to fraction form
    366,459.72/549,587.52 = 129,738.84/x
  3. Step 3: Cross multiply
    366,459.72x = 549,587.52 × 129,738.84
  4. Step 4: Simplify right side
    366,459.72x = 71,302,847,323.28
  5. Step 5: Solve for x
    x = 71,302,847,323.28/366,459.72
  6. Step 6: Final answer
    x = 194,572.13

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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.