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Finding the Fourth Proportional to 124,181.19, 171,365.28 and 70,463

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Solution

The fourth proportional to 124,181.19, 171,365.28 and 70,463 is: 97,236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,181.19 : 171,365.28 = 70,463 : x
  2. Step 2: Convert to fraction form
    124,181.19/171,365.28 = 70,463/x
  3. Step 3: Cross multiply
    124,181.19x = 171,365.28 × 70,463
  4. Step 4: Simplify right side
    124,181.19x = 12,074,911,724.64
  5. Step 5: Solve for x
    x = 12,074,911,724.64/124,181.19
  6. Step 6: Final answer
    x = 97,236.24

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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.