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Finding the Fourth Proportional to 460,303.25, 690,463.52 and 127,887.89

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Solution

The fourth proportional to 460,303.25, 690,463.52 and 127,887.89 is: 191,834.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,303.25 : 690,463.52 = 127,887.89 : x
  2. Step 2: Convert to fraction form
    460,303.25/690,463.52 = 127,887.89/x
  3. Step 3: Cross multiply
    460,303.25x = 690,463.52 × 127,887.89
  4. Step 4: Simplify right side
    460,303.25x = 88,301,922,055.33
  5. Step 5: Solve for x
    x = 88,301,922,055.33/460,303.25
  6. Step 6: Final answer
    x = 191,834.24

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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.