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Finding the Fourth Proportional to 385,562.34, 578,250.36 and 148,753.98

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Solution

The fourth proportional to 385,562.34, 578,250.36 and 148,753.98 is: 223,095.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,562.34 : 578,250.36 = 148,753.98 : x
  2. Step 2: Convert to fraction form
    385,562.34/578,250.36 = 148,753.98/x
  3. Step 3: Cross multiply
    385,562.34x = 578,250.36 × 148,753.98
  4. Step 4: Simplify right side
    385,562.34x = 86,017,042,486.43
  5. Step 5: Solve for x
    x = 86,017,042,486.43/385,562.34
  6. Step 6: Final answer
    x = 223,095.03

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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.