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Finding the Fourth Proportional to 191,599.74, 287,399.61 and 51,362.01

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Solution

The fourth proportional to 191,599.74, 287,399.61 and 51,362.01 is: 77,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,599.74 : 287,399.61 = 51,362.01 : x
  2. Step 2: Convert to fraction form
    191,599.74/287,399.61 = 51,362.01/x
  3. Step 3: Cross multiply
    191,599.74x = 287,399.61 × 51,362.01
  4. Step 4: Simplify right side
    191,599.74x = 14,761,421,642.82
  5. Step 5: Solve for x
    x = 14,761,421,642.82/191,599.74
  6. Step 6: Final answer
    x = 77,043.02

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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.