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Finding the Fourth Proportional to 124,925.63, 172,400.13 and 68,337

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Solution

The fourth proportional to 124,925.63, 172,400.13 and 68,337 is: 94,306.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,925.63 : 172,400.13 = 68,337 : x
  2. Step 2: Convert to fraction form
    124,925.63/172,400.13 = 68,337/x
  3. Step 3: Cross multiply
    124,925.63x = 172,400.13 × 68,337
  4. Step 4: Simplify right side
    124,925.63x = 11,781,307,683.81
  5. Step 5: Solve for x
    x = 11,781,307,683.81/124,925.63
  6. Step 6: Final answer
    x = 94,306.57

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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.