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Finding the Fourth Proportional to 124,380.86, 171,510.06 and 84,024.58

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Solution

The fourth proportional to 124,380.86, 171,510.06 and 84,024.58 is: 115,862.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,380.86 : 171,510.06 = 84,024.58 : x
  2. Step 2: Convert to fraction form
    124,380.86/171,510.06 = 84,024.58/x
  3. Step 3: Cross multiply
    124,380.86x = 171,510.06 × 84,024.58
  4. Step 4: Simplify right side
    124,380.86x = 14,411,060,757.27
  5. Step 5: Solve for x
    x = 14,411,060,757.27/124,380.86
  6. Step 6: Final answer
    x = 115,862.37

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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.