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Finding the Fourth Proportional to 178,777.19, 268,165.53 and 45,657.53

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Solution

The fourth proportional to 178,777.19, 268,165.53 and 45,657.53 is: 68,486.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,777.19 : 268,165.53 = 45,657.53 : x
  2. Step 2: Convert to fraction form
    178,777.19/268,165.53 = 45,657.53/x
  3. Step 3: Cross multiply
    178,777.19x = 268,165.53 × 45,657.53
  4. Step 4: Simplify right side
    178,777.19x = 12,243,775,730.94
  5. Step 5: Solve for x
    x = 12,243,775,730.94/178,777.19
  6. Step 6: Final answer
    x = 68,486.23

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1.5x scale

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.