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Finding the Fourth Proportional to 213,274.72, 319,684.74 and 160,521.04

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Solution

The fourth proportional to 213,274.72, 319,684.74 and 160,521.04 is: 240,610.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,274.72 : 319,684.74 = 160,521.04 : x
  2. Step 2: Convert to fraction form
    213,274.72/319,684.74 = 160,521.04/x
  3. Step 3: Cross multiply
    213,274.72x = 319,684.74 × 160,521.04
  4. Step 4: Simplify right side
    213,274.72x = 51,316,126,936.93
  5. Step 5: Solve for x
    x = 51,316,126,936.93/213,274.72
  6. Step 6: Final answer
    x = 240,610.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.