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Finding the Fourth Proportional to 659,545.92, 989,357.13 and 186,191.64

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Solution

The fourth proportional to 659,545.92, 989,357.13 and 186,191.64 is: 279,298.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,545.92 : 989,357.13 = 186,191.64 : x
  2. Step 2: Convert to fraction form
    659,545.92/989,357.13 = 186,191.64/x
  3. Step 3: Cross multiply
    659,545.92x = 989,357.13 × 186,191.64
  4. Step 4: Simplify right side
    659,545.92x = 184,210,026,580.39
  5. Step 5: Solve for x
    x = 184,210,026,580.39/659,545.92
  6. Step 6: Final answer
    x = 279,298.26

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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.