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Finding the Fourth Proportional to 76,302.72, 105,296.64 and 44,474.88

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Solution

The fourth proportional to 76,302.72, 105,296.64 and 44,474.88 is: 61,374.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,302.72 : 105,296.64 = 44,474.88 : x
  2. Step 2: Convert to fraction form
    76,302.72/105,296.64 = 44,474.88/x
  3. Step 3: Cross multiply
    76,302.72x = 105,296.64 × 44,474.88
  4. Step 4: Simplify right side
    76,302.72x = 4,683,055,428.40
  5. Step 5: Solve for x
    x = 4,683,055,428.40/76,302.72
  6. Step 6: Final answer
    x = 61,374.69

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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.