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Finding the Fourth Proportional to 326,373.84, 489,457.08 and 104,706

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Solution

The fourth proportional to 326,373.84, 489,457.08 and 104,706 is: 157,025.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,373.84 : 489,457.08 = 104,706 : x
  2. Step 2: Convert to fraction form
    326,373.84/489,457.08 = 104,706/x
  3. Step 3: Cross multiply
    326,373.84x = 489,457.08 × 104,706
  4. Step 4: Simplify right side
    326,373.84x = 51,249,093,018.48
  5. Step 5: Solve for x
    x = 51,249,093,018.48/326,373.84
  6. Step 6: Final answer
    x = 157,025.74

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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.