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Finding the Fourth Proportional to 191,353.56, 287,095.22 and 84,722.84

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Solution

The fourth proportional to 191,353.56, 287,095.22 and 84,722.84 is: 127,112.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,353.56 : 287,095.22 = 84,722.84 : x
  2. Step 2: Convert to fraction form
    191,353.56/287,095.22 = 84,722.84/x
  3. Step 3: Cross multiply
    191,353.56x = 287,095.22 × 84,722.84
  4. Step 4: Simplify right side
    191,353.56x = 24,323,521,116.60
  5. Step 5: Solve for x
    x = 24,323,521,116.60/191,353.56
  6. Step 6: Final answer
    x = 127,112.98

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1.5x scale

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.