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Finding the Fourth Proportional to 131,762.96, 181,832.66 and 71,333.58

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Solution

The fourth proportional to 131,762.96, 181,832.66 and 71,333.58 is: 98,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,762.96 : 181,832.66 = 71,333.58 : x
  2. Step 2: Convert to fraction form
    131,762.96/181,832.66 = 71,333.58/x
  3. Step 3: Cross multiply
    131,762.96x = 181,832.66 × 71,333.58
  4. Step 4: Simplify right side
    131,762.96x = 12,970,774,598.72
  5. Step 5: Solve for x
    x = 12,970,774,598.72/131,762.96
  6. Step 6: Final answer
    x = 98,440.22

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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.