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Finding the Fourth Proportional to 124,657.43, 172,004.60 and 73,678.73

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Solution

The fourth proportional to 124,657.43, 172,004.60 and 73,678.73 is: 101,663.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,657.43 : 172,004.60 = 73,678.73 : x
  2. Step 2: Convert to fraction form
    124,657.43/172,004.60 = 73,678.73/x
  3. Step 3: Cross multiply
    124,657.43x = 172,004.60 × 73,678.73
  4. Step 4: Simplify right side
    124,657.43x = 12,673,080,113.76
  5. Step 5: Solve for x
    x = 12,673,080,113.76/124,657.43
  6. Step 6: Final answer
    x = 101,663.26

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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.