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Finding the Fourth Proportional to 86,535.69, 119,424.83 and 48,809.13

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Solution

The fourth proportional to 86,535.69, 119,424.83 and 48,809.13 is: 67,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,535.69 : 119,424.83 = 48,809.13 : x
  2. Step 2: Convert to fraction form
    86,535.69/119,424.83 = 48,809.13/x
  3. Step 3: Cross multiply
    86,535.69x = 119,424.83 × 48,809.13
  4. Step 4: Simplify right side
    86,535.69x = 5,829,021,808.65
  5. Step 5: Solve for x
    x = 5,829,021,808.65/86,535.69
  6. Step 6: Final answer
    x = 67,359.74

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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.