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Finding the Fourth Proportional to 543,158.60, 814,810.80 and 188,281.40

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Solution

The fourth proportional to 543,158.60, 814,810.80 and 188,281.40 is: 282,447.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,158.60 : 814,810.80 = 188,281.40 : x
  2. Step 2: Convert to fraction form
    543,158.60/814,810.80 = 188,281.40/x
  3. Step 3: Cross multiply
    543,158.60x = 814,810.80 × 188,281.40
  4. Step 4: Simplify right side
    543,158.60x = 153,413,718,159.12
  5. Step 5: Solve for x
    x = 153,413,718,159.12/543,158.60
  6. Step 6: Final answer
    x = 282,447.37

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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.