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Finding the Fourth Proportional to 623,874.71, 935,812.21 and 174,661.74

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Solution

The fourth proportional to 623,874.71, 935,812.21 and 174,661.74 is: 261,992.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,874.71 : 935,812.21 = 174,661.74 : x
  2. Step 2: Convert to fraction form
    623,874.71/935,812.21 = 174,661.74/x
  3. Step 3: Cross multiply
    623,874.71x = 935,812.21 × 174,661.74
  4. Step 4: Simplify right side
    623,874.71x = 163,450,591,925.89
  5. Step 5: Solve for x
    x = 163,450,591,925.89/623,874.71
  6. Step 6: Final answer
    x = 261,992.66

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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.