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Finding the Fourth Proportional to 191,641.68, 287,504.60 and 56,695.19

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Solution

The fourth proportional to 191,641.68, 287,504.60 and 56,695.19 is: 85,055.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,641.68 : 287,504.60 = 56,695.19 : x
  2. Step 2: Convert to fraction form
    191,641.68/287,504.60 = 56,695.19/x
  3. Step 3: Cross multiply
    191,641.68x = 287,504.60 × 56,695.19
  4. Step 4: Simplify right side
    191,641.68x = 16,300,127,922.87
  5. Step 5: Solve for x
    x = 16,300,127,922.87/191,641.68
  6. Step 6: Final answer
    x = 85,055.23

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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.