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Finding the Fourth Proportional to 86,208.30, 118,966.30 and 48,482.55

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Solution

The fourth proportional to 86,208.30, 118,966.30 and 48,482.55 is: 66,905.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,208.30 : 118,966.30 = 48,482.55 : x
  2. Step 2: Convert to fraction form
    86,208.30/118,966.30 = 48,482.55/x
  3. Step 3: Cross multiply
    86,208.30x = 118,966.30 × 48,482.55
  4. Step 4: Simplify right side
    86,208.30x = 5,767,789,588.07
  5. Step 5: Solve for x
    x = 5,767,789,588.07/86,208.30
  6. Step 6: Final answer
    x = 66,905.27

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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.