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Finding the Fourth Proportional to 172,835, 238,512.32 and 93,347

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Solution

The fourth proportional to 172,835, 238,512.32 and 93,347 is: 128,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,835 : 238,512.32 = 93,347 : x
  2. Step 2: Convert to fraction form
    172,835/238,512.32 = 93,347/x
  3. Step 3: Cross multiply
    172,835x = 238,512.32 × 93,347
  4. Step 4: Simplify right side
    172,835x = 22,264,409,535.04
  5. Step 5: Solve for x
    x = 22,264,409,535.04/172,835
  6. Step 6: Final answer
    x = 128,818.87

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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.