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Finding the Fourth Proportional to 124,292.85, 171,525.29 and 70,578.98

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Solution

The fourth proportional to 124,292.85, 171,525.29 and 70,578.98 is: 97,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,292.85 : 171,525.29 = 70,578.98 : x
  2. Step 2: Convert to fraction form
    124,292.85/171,525.29 = 70,578.98/x
  3. Step 3: Cross multiply
    124,292.85x = 171,525.29 × 70,578.98
  4. Step 4: Simplify right side
    124,292.85x = 12,106,079,445.10
  5. Step 5: Solve for x
    x = 12,106,079,445.10/124,292.85
  6. Step 6: Final answer
    x = 97,399.65

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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.