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Finding the Fourth Proportional to 191,476.45, 287,192.79 and 51,246.01

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Solution

The fourth proportional to 191,476.45, 287,192.79 and 51,246.01 is: 76,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,476.45 : 287,192.79 = 51,246.01 : x
  2. Step 2: Convert to fraction form
    191,476.45/287,192.79 = 51,246.01/x
  3. Step 3: Cross multiply
    191,476.45x = 287,192.79 × 51,246.01
  4. Step 4: Simplify right side
    191,476.45x = 14,717,484,588.27
  5. Step 5: Solve for x
    x = 14,717,484,588.27/191,476.45
  6. Step 6: Final answer
    x = 76,863.16

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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.