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Finding the Fourth Proportional to 191,957.59, 287,991.69 and 58,857.46

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Solution

The fourth proportional to 191,957.59, 287,991.69 and 58,857.46 is: 88,303.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,957.59 : 287,991.69 = 58,857.46 : x
  2. Step 2: Convert to fraction form
    191,957.59/287,991.69 = 58,857.46/x
  3. Step 3: Cross multiply
    191,957.59x = 287,991.69 × 58,857.46
  4. Step 4: Simplify right side
    191,957.59x = 16,950,459,374.51
  5. Step 5: Solve for x
    x = 16,950,459,374.51/191,957.59
  6. Step 6: Final answer
    x = 88,303.15

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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.