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Finding the Fourth Proportional to 355,281.10, 532,662.45 and 144,810.70

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Solution

The fourth proportional to 355,281.10, 532,662.45 and 144,810.70 is: 217,110.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,281.10 : 532,662.45 = 144,810.70 : x
  2. Step 2: Convert to fraction form
    355,281.10/532,662.45 = 144,810.70/x
  3. Step 3: Cross multiply
    355,281.10x = 532,662.45 × 144,810.70
  4. Step 4: Simplify right side
    355,281.10x = 77,135,222,248.22
  5. Step 5: Solve for x
    x = 77,135,222,248.22/355,281.10
  6. Step 6: Final answer
    x = 217,110.40

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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.