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Finding the Fourth Proportional to 187,300.70, 280,951.05 and 124,315.10

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Solution

The fourth proportional to 187,300.70, 280,951.05 and 124,315.10 is: 186,472.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,300.70 : 280,951.05 = 124,315.10 : x
  2. Step 2: Convert to fraction form
    187,300.70/280,951.05 = 124,315.10/x
  3. Step 3: Cross multiply
    187,300.70x = 280,951.05 × 124,315.10
  4. Step 4: Simplify right side
    187,300.70x = 34,926,457,875.86
  5. Step 5: Solve for x
    x = 34,926,457,875.86/187,300.70
  6. Step 6: Final answer
    x = 186,472.65

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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.