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Finding the Fourth Proportional to 355,109.80, 532,967.10 and 144,898.60

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Solution

The fourth proportional to 355,109.80, 532,967.10 and 144,898.60 is: 217,471.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,109.80 : 532,967.10 = 144,898.60 : x
  2. Step 2: Convert to fraction form
    355,109.80/532,967.10 = 144,898.60/x
  3. Step 3: Cross multiply
    355,109.80x = 532,967.10 × 144,898.60
  4. Step 4: Simplify right side
    355,109.80x = 77,226,186,636.06
  5. Step 5: Solve for x
    x = 77,226,186,636.06/355,109.80
  6. Step 6: Final answer
    x = 217,471.29

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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.