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Finding the Fourth Proportional to 86,703.68, 119,653.80 and 48,980.36

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Solution

The fourth proportional to 86,703.68, 119,653.80 and 48,980.36 is: 67,594.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.68 : 119,653.80 = 48,980.36 : x
  2. Step 2: Convert to fraction form
    86,703.68/119,653.80 = 48,980.36/x
  3. Step 3: Cross multiply
    86,703.68x = 119,653.80 × 48,980.36
  4. Step 4: Simplify right side
    86,703.68x = 5,860,686,199.37
  5. Step 5: Solve for x
    x = 5,860,686,199.37/86,703.68
  6. Step 6: Final answer
    x = 67,594.43

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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.