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Finding the Fourth Proportional to 191,088.66, 263,700.44 and 106,203.90

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Solution

The fourth proportional to 191,088.66, 263,700.44 and 106,203.90 is: 146,560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,088.66 : 263,700.44 = 106,203.90 : x
  2. Step 2: Convert to fraction form
    191,088.66/263,700.44 = 106,203.90/x
  3. Step 3: Cross multiply
    191,088.66x = 263,700.44 × 106,203.90
  4. Step 4: Simplify right side
    191,088.66x = 28,006,015,159.72
  5. Step 5: Solve for x
    x = 28,006,015,159.72/191,088.66
  6. Step 6: Final answer
    x = 146,560.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.