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Finding the Fourth Proportional to 358,143.54, 537,221.52 and 121,492.32

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Solution

The fourth proportional to 358,143.54, 537,221.52 and 121,492.32 is: 182,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,143.54 : 537,221.52 = 121,492.32 : x
  2. Step 2: Convert to fraction form
    358,143.54/537,221.52 = 121,492.32/x
  3. Step 3: Cross multiply
    358,143.54x = 537,221.52 × 121,492.32
  4. Step 4: Simplify right side
    358,143.54x = 65,268,288,818.73
  5. Step 5: Solve for x
    x = 65,268,288,818.73/358,143.54
  6. Step 6: Final answer
    x = 182,240.59

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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.