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Finding the Fourth Proportional to 316,177.97, 436,328.98 and 172,934.93

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Solution

The fourth proportional to 316,177.97, 436,328.98 and 172,934.93 is: 238,652.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,177.97 : 436,328.98 = 172,934.93 : x
  2. Step 2: Convert to fraction form
    316,177.97/436,328.98 = 172,934.93/x
  3. Step 3: Cross multiply
    316,177.97x = 436,328.98 × 172,934.93
  4. Step 4: Simplify right side
    316,177.97x = 75,456,522,271.76
  5. Step 5: Solve for x
    x = 75,456,522,271.76/316,177.97
  6. Step 6: Final answer
    x = 238,652.06

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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.