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Finding the Fourth Proportional to 124,294.16, 171,519.86 and 70,578.03

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Solution

The fourth proportional to 124,294.16, 171,519.86 and 70,578.03 is: 97,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,294.16 : 171,519.86 = 70,578.03 : x
  2. Step 2: Convert to fraction form
    124,294.16/171,519.86 = 70,578.03/x
  3. Step 3: Cross multiply
    124,294.16x = 171,519.86 × 70,578.03
  4. Step 4: Simplify right side
    124,294.16x = 12,105,533,824.68
  5. Step 5: Solve for x
    x = 12,105,533,824.68/124,294.16
  6. Step 6: Final answer
    x = 97,394.23

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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.