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Finding the Fourth Proportional to 124,642.35, 186,967.32 and 48,737.86

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Solution

The fourth proportional to 124,642.35, 186,967.32 and 48,737.86 is: 73,108.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,642.35 : 186,967.32 = 48,737.86 : x
  2. Step 2: Convert to fraction form
    124,642.35/186,967.32 = 48,737.86/x
  3. Step 3: Cross multiply
    124,642.35x = 186,967.32 × 48,737.86
  4. Step 4: Simplify right side
    124,642.35x = 9,112,387,066.74
  5. Step 5: Solve for x
    x = 9,112,387,066.74/124,642.35
  6. Step 6: Final answer
    x = 73,108.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.