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Finding the Fourth Proportional to 86,202.32, 118,975.59 and 53,951.93

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Solution

The fourth proportional to 86,202.32, 118,975.59 and 53,951.93 is: 74,463.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,202.32 : 118,975.59 = 53,951.93 : x
  2. Step 2: Convert to fraction form
    86,202.32/118,975.59 = 53,951.93/x
  3. Step 3: Cross multiply
    86,202.32x = 118,975.59 × 53,951.93
  4. Step 4: Simplify right side
    86,202.32x = 6,418,962,108.51
  5. Step 5: Solve for x
    x = 6,418,962,108.51/86,202.32
  6. Step 6: Final answer
    x = 74,463.91

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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.