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Finding the Fourth Proportional to 178,342.85, 246,123.17 and 105,788.76

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Solution

The fourth proportional to 178,342.85, 246,123.17 and 105,788.76 is: 145,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,342.85 : 246,123.17 = 105,788.76 : x
  2. Step 2: Convert to fraction form
    178,342.85/246,123.17 = 105,788.76/x
  3. Step 3: Cross multiply
    178,342.85x = 246,123.17 × 105,788.76
  4. Step 4: Simplify right side
    178,342.85x = 26,037,064,432.63
  5. Step 5: Solve for x
    x = 26,037,064,432.63/178,342.85
  6. Step 6: Final answer
    x = 145,994.44

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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.