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Finding the Fourth Proportional to 127,506.25, 175,958.63 and 70,916.41

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Solution

The fourth proportional to 127,506.25, 175,958.63 and 70,916.41 is: 97,864.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,506.25 : 175,958.63 = 70,916.41 : x
  2. Step 2: Convert to fraction form
    127,506.25/175,958.63 = 70,916.41/x
  3. Step 3: Cross multiply
    127,506.25x = 175,958.63 × 70,916.41
  4. Step 4: Simplify right side
    127,506.25x = 12,478,354,348.12
  5. Step 5: Solve for x
    x = 12,478,354,348.12/127,506.25
  6. Step 6: Final answer
    x = 97,864.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.