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Finding the Fourth Proportional to 316,044.81, 436,126.55 and 180,110.61

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Solution

The fourth proportional to 316,044.81, 436,126.55 and 180,110.61 is: 248,543.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,044.81 : 436,126.55 = 180,110.61 : x
  2. Step 2: Convert to fraction form
    316,044.81/436,126.55 = 180,110.61/x
  3. Step 3: Cross multiply
    316,044.81x = 436,126.55 × 180,110.61
  4. Step 4: Simplify right side
    316,044.81x = 78,551,018,057.14
  5. Step 5: Solve for x
    x = 78,551,018,057.14/316,044.81
  6. Step 6: Final answer
    x = 248,543.93

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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.