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Finding the Fourth Proportional to 124,101.52, 171,256.40 and 70,391.44

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Solution

The fourth proportional to 124,101.52, 171,256.40 and 70,391.44 is: 97,138.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,101.52 : 171,256.40 = 70,391.44 : x
  2. Step 2: Convert to fraction form
    124,101.52/171,256.40 = 70,391.44/x
  3. Step 3: Cross multiply
    124,101.52x = 171,256.40 × 70,391.44
  4. Step 4: Simplify right side
    124,101.52x = 12,054,984,605.22
  5. Step 5: Solve for x
    x = 12,054,984,605.22/124,101.52
  6. Step 6: Final answer
    x = 97,138.09

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1.5x scale

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.