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Finding the Fourth Proportional to 85,533.97, 118,034.78 and 47,292.51

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Solution

The fourth proportional to 85,533.97, 118,034.78 and 47,292.51 is: 65,262.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,533.97 : 118,034.78 = 47,292.51 : x
  2. Step 2: Convert to fraction form
    85,533.97/118,034.78 = 47,292.51/x
  3. Step 3: Cross multiply
    85,533.97x = 118,034.78 × 47,292.51
  4. Step 4: Simplify right side
    85,533.97x = 5,582,160,888.25
  5. Step 5: Solve for x
    x = 5,582,160,888.25/85,533.97
  6. Step 6: Final answer
    x = 65,262.50

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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.