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Finding the Fourth Proportional to 358,207.20, 537,181.20 and 144,885.60

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Solution

The fourth proportional to 358,207.20, 537,181.20 and 144,885.60 is: 217,275.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,207.20 : 537,181.20 = 144,885.60 : x
  2. Step 2: Convert to fraction form
    358,207.20/537,181.20 = 144,885.60/x
  3. Step 3: Cross multiply
    358,207.20x = 537,181.20 × 144,885.60
  4. Step 4: Simplify right side
    358,207.20x = 77,829,820,470.72
  5. Step 5: Solve for x
    x = 77,829,820,470.72/358,207.20
  6. Step 6: Final answer
    x = 217,275.98

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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.