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Finding the Fourth Proportional to 424,166.85, 636,254.64 and 124,652.76

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Solution

The fourth proportional to 424,166.85, 636,254.64 and 124,652.76 is: 186,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,166.85 : 636,254.64 = 124,652.76 : x
  2. Step 2: Convert to fraction form
    424,166.85/636,254.64 = 124,652.76/x
  3. Step 3: Cross multiply
    424,166.85x = 636,254.64 × 124,652.76
  4. Step 4: Simplify right side
    424,166.85x = 79,310,896,938.81
  5. Step 5: Solve for x
    x = 79,310,896,938.81/424,166.85
  6. Step 6: Final answer
    x = 186,980.42

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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.