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Finding the Fourth Proportional to 532,790.10, 799,148.70 and 172,955.70

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Solution

The fourth proportional to 532,790.10, 799,148.70 and 172,955.70 is: 259,421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,790.10 : 799,148.70 = 172,955.70 : x
  2. Step 2: Convert to fraction form
    532,790.10/799,148.70 = 172,955.70/x
  3. Step 3: Cross multiply
    532,790.10x = 799,148.70 × 172,955.70
  4. Step 4: Simplify right side
    532,790.10x = 138,217,322,812.59
  5. Step 5: Solve for x
    x = 138,217,322,812.59/532,790.10
  6. Step 6: Final answer
    x = 259,421.72

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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.