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Finding the Fourth Proportional to 191,925.60, 287,925.30 and 73,587.71

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Solution

The fourth proportional to 191,925.60, 287,925.30 and 73,587.71 is: 110,395.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,925.60 : 287,925.30 = 73,587.71 : x
  2. Step 2: Convert to fraction form
    191,925.60/287,925.30 = 73,587.71/x
  3. Step 3: Cross multiply
    191,925.60x = 287,925.30 × 73,587.71
  4. Step 4: Simplify right side
    191,925.60x = 21,187,763,478.06
  5. Step 5: Solve for x
    x = 21,187,763,478.06/191,925.60
  6. Step 6: Final answer
    x = 110,395.71

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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.