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Finding the Fourth Proportional to 424,808.74, 637,322.46 and 125,277.22

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Solution

The fourth proportional to 424,808.74, 637,322.46 and 125,277.22 is: 187,948.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,808.74 : 637,322.46 = 125,277.22 : x
  2. Step 2: Convert to fraction form
    424,808.74/637,322.46 = 125,277.22/x
  3. Step 3: Cross multiply
    424,808.74x = 637,322.46 × 125,277.22
  4. Step 4: Simplify right side
    424,808.74x = 79,841,986,032.36
  5. Step 5: Solve for x
    x = 79,841,986,032.36/424,808.74
  6. Step 6: Final answer
    x = 187,948.08

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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.