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Finding the Fourth Proportional to 86,530.75, 129,795.53 and 46,568.54

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Solution

The fourth proportional to 86,530.75, 129,795.53 and 46,568.54 is: 69,852.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,530.75 : 129,795.53 = 46,568.54 : x
  2. Step 2: Convert to fraction form
    86,530.75/129,795.53 = 46,568.54/x
  3. Step 3: Cross multiply
    86,530.75x = 129,795.53 × 46,568.54
  4. Step 4: Simplify right side
    86,530.75x = 6,044,387,798.07
  5. Step 5: Solve for x
    x = 6,044,387,798.07/86,530.75
  6. Step 6: Final answer
    x = 69,852.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.