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Finding the Fourth Proportional to 191,935.80, 287,903.70 and 181,567.80

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Solution

The fourth proportional to 191,935.80, 287,903.70 and 181,567.80 is: 272,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,935.80 : 287,903.70 = 181,567.80 : x
  2. Step 2: Convert to fraction form
    191,935.80/287,903.70 = 181,567.80/x
  3. Step 3: Cross multiply
    191,935.80x = 287,903.70 × 181,567.80
  4. Step 4: Simplify right side
    191,935.80x = 52,274,041,420.86
  5. Step 5: Solve for x
    x = 52,274,041,420.86/191,935.80
  6. Step 6: Final answer
    x = 272,351.70

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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.