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Finding the Fourth Proportional to 86,852.64, 130,276.53 and 36,907.68

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Solution

The fourth proportional to 86,852.64, 130,276.53 and 36,907.68 is: 55,360.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,852.64 : 130,276.53 = 36,907.68 : x
  2. Step 2: Convert to fraction form
    86,852.64/130,276.53 = 36,907.68/x
  3. Step 3: Cross multiply
    86,852.64x = 130,276.53 × 36,907.68
  4. Step 4: Simplify right side
    86,852.64x = 4,808,204,480.75
  5. Step 5: Solve for x
    x = 4,808,204,480.75/86,852.64
  6. Step 6: Final answer
    x = 55,360.49

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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.