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Finding the Fourth Proportional to 76,280.88, 105,277.92 and 44,459.76

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Solution

The fourth proportional to 76,280.88, 105,277.92 and 44,459.76 is: 61,360.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,280.88 : 105,277.92 = 44,459.76 : x
  2. Step 2: Convert to fraction form
    76,280.88/105,277.92 = 44,459.76/x
  3. Step 3: Cross multiply
    76,280.88x = 105,277.92 × 44,459.76
  4. Step 4: Simplify right side
    76,280.88x = 4,680,631,056.50
  5. Step 5: Solve for x
    x = 4,680,631,056.50/76,280.88
  6. Step 6: Final answer
    x = 61,360.48

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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.