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Finding the Fourth Proportional to 191,756.08, 287,763.72 and 67,098.16

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Solution

The fourth proportional to 191,756.08, 287,763.72 and 67,098.16 is: 100,692.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,756.08 : 287,763.72 = 67,098.16 : x
  2. Step 2: Convert to fraction form
    191,756.08/287,763.72 = 67,098.16/x
  3. Step 3: Cross multiply
    191,756.08x = 287,763.72 × 67,098.16
  4. Step 4: Simplify right side
    191,756.08x = 19,308,416,126.76
  5. Step 5: Solve for x
    x = 19,308,416,126.76/191,756.08
  6. Step 6: Final answer
    x = 100,692.59

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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.