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Finding the Fourth Proportional to 86,637.52, 119,579.52 and 56,369.44

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Solution

The fourth proportional to 86,637.52, 119,579.52 and 56,369.44 is: 77,802.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,637.52 : 119,579.52 = 56,369.44 : x
  2. Step 2: Convert to fraction form
    86,637.52/119,579.52 = 56,369.44/x
  3. Step 3: Cross multiply
    86,637.52x = 119,579.52 × 56,369.44
  4. Step 4: Simplify right side
    86,637.52x = 6,740,630,577.87
  5. Step 5: Solve for x
    x = 6,740,630,577.87/86,637.52
  6. Step 6: Final answer
    x = 77,802.67

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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.