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Finding the Fourth Proportional to 543,261.47, 815,037.12 and 188,275.19

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Solution

The fourth proportional to 543,261.47, 815,037.12 and 188,275.19 is: 282,463.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,261.47 : 815,037.12 = 188,275.19 : x
  2. Step 2: Convert to fraction form
    543,261.47/815,037.12 = 188,275.19/x
  3. Step 3: Cross multiply
    543,261.47x = 815,037.12 × 188,275.19
  4. Step 4: Simplify right side
    543,261.47x = 153,451,264,549.87
  5. Step 5: Solve for x
    x = 153,451,264,549.87/543,261.47
  6. Step 6: Final answer
    x = 282,463.00

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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.