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Finding the Fourth Proportional to 191,405.16, 287,150.73 and 58,295.94

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Solution

The fourth proportional to 191,405.16, 287,150.73 and 58,295.94 is: 87,457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,405.16 : 287,150.73 = 58,295.94 : x
  2. Step 2: Convert to fraction form
    191,405.16/287,150.73 = 58,295.94/x
  3. Step 3: Cross multiply
    191,405.16x = 287,150.73 × 58,295.94
  4. Step 4: Simplify right side
    191,405.16x = 16,739,721,727.04
  5. Step 5: Solve for x
    x = 16,739,721,727.04/191,405.16
  6. Step 6: Final answer
    x = 87,457.00

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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.