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Finding the Fourth Proportional to 124,080, 171,230.48 and 70,347.84

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Solution

The fourth proportional to 124,080, 171,230.48 and 70,347.84 is: 97,080.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,080 : 171,230.48 = 70,347.84 : x
  2. Step 2: Convert to fraction form
    124,080/171,230.48 = 70,347.84/x
  3. Step 3: Cross multiply
    124,080x = 171,230.48 × 70,347.84
  4. Step 4: Simplify right side
    124,080x = 12,045,694,410.16
  5. Step 5: Solve for x
    x = 12,045,694,410.16/124,080
  6. Step 6: Final answer
    x = 97,080.06

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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.