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Finding the Fourth Proportional to 86,762.10, 119,737.80 and 48,525.21

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Solution

The fourth proportional to 86,762.10, 119,737.80 and 48,525.21 is: 66,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,762.10 : 119,737.80 = 48,525.21 : x
  2. Step 2: Convert to fraction form
    86,762.10/119,737.80 = 48,525.21/x
  3. Step 3: Cross multiply
    86,762.10x = 119,737.80 × 48,525.21
  4. Step 4: Simplify right side
    86,762.10x = 5,810,301,889.94
  5. Step 5: Solve for x
    x = 5,810,301,889.94/86,762.10
  6. Step 6: Final answer
    x = 66,968.20

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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.