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Finding the Fourth Proportional to 76,451.99, 105,506.42 and 42,461.01

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Solution

The fourth proportional to 76,451.99, 105,506.42 and 42,461.01 is: 58,597.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,451.99 : 105,506.42 = 42,461.01 : x
  2. Step 2: Convert to fraction form
    76,451.99/105,506.42 = 42,461.01/x
  3. Step 3: Cross multiply
    76,451.99x = 105,506.42 × 42,461.01
  4. Step 4: Simplify right side
    76,451.99x = 4,479,908,942.38
  5. Step 5: Solve for x
    x = 4,479,908,942.38/76,451.99
  6. Step 6: Final answer
    x = 58,597.68

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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.