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Finding the Fourth Proportional to 124,520.22, 171,842.70 and 70,810.08

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Solution

The fourth proportional to 124,520.22, 171,842.70 and 70,810.08 is: 97,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,520.22 : 171,842.70 = 70,810.08 : x
  2. Step 2: Convert to fraction form
    124,520.22/171,842.70 = 70,810.08/x
  3. Step 3: Cross multiply
    124,520.22x = 171,842.70 × 70,810.08
  4. Step 4: Simplify right side
    124,520.22x = 12,168,195,334.42
  5. Step 5: Solve for x
    x = 12,168,195,334.42/124,520.22
  6. Step 6: Final answer
    x = 97,720.64

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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.