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Finding the Fourth Proportional to 191,504.19, 287,275.95 and 73,274.97

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Solution

The fourth proportional to 191,504.19, 287,275.95 and 73,274.97 is: 109,919.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,504.19 : 287,275.95 = 73,274.97 : x
  2. Step 2: Convert to fraction form
    191,504.19/287,275.95 = 73,274.97/x
  3. Step 3: Cross multiply
    191,504.19x = 287,275.95 × 73,274.97
  4. Step 4: Simplify right side
    191,504.19x = 21,050,136,617.97
  5. Step 5: Solve for x
    x = 21,050,136,617.97/191,504.19
  6. Step 6: Final answer
    x = 109,919.98

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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.