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Finding the Fourth Proportional to 191,638.68, 287,500.10 and 56,692.19

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Solution

The fourth proportional to 191,638.68, 287,500.10 and 56,692.19 is: 85,050.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,638.68 : 287,500.10 = 56,692.19 : x
  2. Step 2: Convert to fraction form
    191,638.68/287,500.10 = 56,692.19/x
  3. Step 3: Cross multiply
    191,638.68x = 287,500.10 × 56,692.19
  4. Step 4: Simplify right side
    191,638.68x = 16,299,008,573.26
  5. Step 5: Solve for x
    x = 16,299,008,573.26/191,638.68
  6. Step 6: Final answer
    x = 85,050.72

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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.