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Finding the Fourth Proportional to 460,303.75, 690,464.27 and 127,888.39

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Solution

The fourth proportional to 460,303.75, 690,464.27 and 127,888.39 is: 191,834.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,303.75 : 690,464.27 = 127,888.39 : x
  2. Step 2: Convert to fraction form
    460,303.75/690,464.27 = 127,888.39/x
  3. Step 3: Cross multiply
    460,303.75x = 690,464.27 × 127,888.39
  4. Step 4: Simplify right side
    460,303.75x = 88,302,363,842.83
  5. Step 5: Solve for x
    x = 88,302,363,842.83/460,303.75
  6. Step 6: Final answer
    x = 191,834.99

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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.