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Finding the Fourth Proportional to 171,461.34, 236,678.76 and 139,574.88

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Solution

The fourth proportional to 171,461.34, 236,678.76 and 139,574.88 is: 192,663.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,461.34 : 236,678.76 = 139,574.88 : x
  2. Step 2: Convert to fraction form
    171,461.34/236,678.76 = 139,574.88/x
  3. Step 3: Cross multiply
    171,461.34x = 236,678.76 × 139,574.88
  4. Step 4: Simplify right side
    171,461.34x = 33,034,409,525.55
  5. Step 5: Solve for x
    x = 33,034,409,525.55/171,461.34
  6. Step 6: Final answer
    x = 192,663.89

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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.