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Finding the Fourth Proportional to 191,463.07, 287,371.91 and 96,759.90

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Solution

The fourth proportional to 191,463.07, 287,371.91 and 96,759.90 is: 145,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,463.07 : 287,371.91 = 96,759.90 : x
  2. Step 2: Convert to fraction form
    191,463.07/287,371.91 = 96,759.90/x
  3. Step 3: Cross multiply
    191,463.07x = 287,371.91 × 96,759.90
  4. Step 4: Simplify right side
    191,463.07x = 27,806,075,837.55
  5. Step 5: Solve for x
    x = 27,806,075,837.55/191,463.07
  6. Step 6: Final answer
    x = 145,229.45

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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.