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Finding the Fourth Proportional to 109,411.40, 164,117.10 and 62,625.80

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Solution

The fourth proportional to 109,411.40, 164,117.10 and 62,625.80 is: 93,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,411.40 : 164,117.10 = 62,625.80 : x
  2. Step 2: Convert to fraction form
    109,411.40/164,117.10 = 62,625.80/x
  3. Step 3: Cross multiply
    109,411.40x = 164,117.10 × 62,625.80
  4. Step 4: Simplify right side
    109,411.40x = 10,277,964,681.18
  5. Step 5: Solve for x
    x = 10,277,964,681.18/109,411.40
  6. Step 6: Final answer
    x = 93,938.70

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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.