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Finding the Fourth Proportional to 354,545.13, 531,822.32 and 117,887.81

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Solution

The fourth proportional to 354,545.13, 531,822.32 and 117,887.81 is: 176,833.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,545.13 : 531,822.32 = 117,887.81 : x
  2. Step 2: Convert to fraction form
    354,545.13/531,822.32 = 117,887.81/x
  3. Step 3: Cross multiply
    354,545.13x = 531,822.32 × 117,887.81
  4. Step 4: Simplify right side
    354,545.13x = 62,695,365,807.45
  5. Step 5: Solve for x
    x = 62,695,365,807.45/354,545.13
  6. Step 6: Final answer
    x = 176,833.24

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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.