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Finding the Fourth Proportional to 86,873.52, 130,155.84 and 60,526.56

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Solution

The fourth proportional to 86,873.52, 130,155.84 and 60,526.56 is: 90,682.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,873.52 : 130,155.84 = 60,526.56 : x
  2. Step 2: Convert to fraction form
    86,873.52/130,155.84 = 60,526.56/x
  3. Step 3: Cross multiply
    86,873.52x = 130,155.84 × 60,526.56
  4. Step 4: Simplify right side
    86,873.52x = 7,877,885,259.11
  5. Step 5: Solve for x
    x = 7,877,885,259.11/86,873.52
  6. Step 6: Final answer
    x = 90,682.24

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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.