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Finding the Fourth Proportional to 180,482.86, 248,885.69 and 120,056.05

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Solution

The fourth proportional to 180,482.86, 248,885.69 and 120,056.05 is: 165,557.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,482.86 : 248,885.69 = 120,056.05 : x
  2. Step 2: Convert to fraction form
    180,482.86/248,885.69 = 120,056.05/x
  3. Step 3: Cross multiply
    180,482.86x = 248,885.69 × 120,056.05
  4. Step 4: Simplify right side
    180,482.86x = 29,880,232,842.92
  5. Step 5: Solve for x
    x = 29,880,232,842.92/180,482.86
  6. Step 6: Final answer
    x = 165,557.18

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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.