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Finding the Fourth Proportional to 191,998.40, 287,986.82 and 58,878.29

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Solution

The fourth proportional to 191,998.40, 287,986.82 and 58,878.29 is: 88,314.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,998.40 : 287,986.82 = 58,878.29 : x
  2. Step 2: Convert to fraction form
    191,998.40/287,986.82 = 58,878.29/x
  3. Step 3: Cross multiply
    191,998.40x = 287,986.82 × 58,878.29
  4. Step 4: Simplify right side
    191,998.40x = 16,956,172,095.31
  5. Step 5: Solve for x
    x = 16,956,172,095.31/191,998.40
  6. Step 6: Final answer
    x = 88,314.13

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1.5x scale

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.