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Finding the Fourth Proportional to 191,411.66, 287,159.00 and 58,288.43

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Solution

The fourth proportional to 191,411.66, 287,159.00 and 58,288.43 is: 87,445.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,411.66 : 287,159.00 = 58,288.43 : x
  2. Step 2: Convert to fraction form
    191,411.66/287,159.00 = 58,288.43/x
  3. Step 3: Cross multiply
    191,411.66x = 287,159.00 × 58,288.43
  4. Step 4: Simplify right side
    191,411.66x = 16,738,045,543.13
  5. Step 5: Solve for x
    x = 16,738,045,543.13/191,411.66
  6. Step 6: Final answer
    x = 87,445.28

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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.