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Finding the Fourth Proportional to 581,257, 871,885.50 and 187,273

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Solution

The fourth proportional to 581,257, 871,885.50 and 187,273 is: 280,909.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,257 : 871,885.50 = 187,273 : x
  2. Step 2: Convert to fraction form
    581,257/871,885.50 = 187,273/x
  3. Step 3: Cross multiply
    581,257x = 871,885.50 × 187,273
  4. Step 4: Simplify right side
    581,257x = 163,280,613,241.50
  5. Step 5: Solve for x
    x = 163,280,613,241.50/581,257
  6. Step 6: Final answer
    x = 280,909.50

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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.