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Finding the Fourth Proportional to 238,459.01, 329,079.44 and 131,031.74

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Solution

The fourth proportional to 238,459.01, 329,079.44 and 131,031.74 is: 180,827.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,459.01 : 329,079.44 = 131,031.74 : x
  2. Step 2: Convert to fraction form
    238,459.01/329,079.44 = 131,031.74/x
  3. Step 3: Cross multiply
    238,459.01x = 329,079.44 × 131,031.74
  4. Step 4: Simplify right side
    238,459.01x = 43,119,852,771.70
  5. Step 5: Solve for x
    x = 43,119,852,771.70/238,459.01
  6. Step 6: Final answer
    x = 180,827.11

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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.