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Finding the Fourth Proportional to 86,703.81, 130,055.72 and 24,374.31

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Solution

The fourth proportional to 86,703.81, 130,055.72 and 24,374.31 is: 36,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.81 : 130,055.72 = 24,374.31 : x
  2. Step 2: Convert to fraction form
    86,703.81/130,055.72 = 24,374.31/x
  3. Step 3: Cross multiply
    86,703.81x = 130,055.72 × 24,374.31
  4. Step 4: Simplify right side
    86,703.81x = 3,170,018,436.55
  5. Step 5: Solve for x
    x = 3,170,018,436.55/86,703.81
  6. Step 6: Final answer
    x = 36,561.47

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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.