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Finding the Fourth Proportional to 124,434.32, 171,713.16 and 70,712.24

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Solution

The fourth proportional to 124,434.32, 171,713.16 and 70,712.24 is: 97,579.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,434.32 : 171,713.16 = 70,712.24 : x
  2. Step 2: Convert to fraction form
    124,434.32/171,713.16 = 70,712.24/x
  3. Step 3: Cross multiply
    124,434.32x = 171,713.16 × 70,712.24
  4. Step 4: Simplify right side
    124,434.32x = 12,142,222,181.08
  5. Step 5: Solve for x
    x = 12,142,222,181.08/124,434.32
  6. Step 6: Final answer
    x = 97,579.37

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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.