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Finding the Fourth Proportional to 141,953.17, 212,486.85 and 104,555.47

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Solution

The fourth proportional to 141,953.17, 212,486.85 and 104,555.47 is: 156,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,953.17 : 212,486.85 = 104,555.47 : x
  2. Step 2: Convert to fraction form
    141,953.17/212,486.85 = 104,555.47/x
  3. Step 3: Cross multiply
    141,953.17x = 212,486.85 × 104,555.47
  4. Step 4: Simplify right side
    141,953.17x = 22,216,662,470.57
  5. Step 5: Solve for x
    x = 22,216,662,470.57/141,953.17
  6. Step 6: Final answer
    x = 156,506.98

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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.