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Finding the Fourth Proportional to 543,156.60, 814,807.80 and 188,279.40

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Solution

The fourth proportional to 543,156.60, 814,807.80 and 188,279.40 is: 282,444.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,156.60 : 814,807.80 = 188,279.40 : x
  2. Step 2: Convert to fraction form
    543,156.60/814,807.80 = 188,279.40/x
  3. Step 3: Cross multiply
    543,156.60x = 814,807.80 × 188,279.40
  4. Step 4: Simplify right side
    543,156.60x = 153,411,523,699.32
  5. Step 5: Solve for x
    x = 153,411,523,699.32/543,156.60
  6. Step 6: Final answer
    x = 282,444.37

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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.