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Finding the Fourth Proportional to 243,007.20, 364,510.80 and 167,968.80

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Solution

The fourth proportional to 243,007.20, 364,510.80 and 167,968.80 is: 251,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,007.20 : 364,510.80 = 167,968.80 : x
  2. Step 2: Convert to fraction form
    243,007.20/364,510.80 = 167,968.80/x
  3. Step 3: Cross multiply
    243,007.20x = 364,510.80 × 167,968.80
  4. Step 4: Simplify right side
    243,007.20x = 61,226,441,663.04
  5. Step 5: Solve for x
    x = 61,226,441,663.04/243,007.20
  6. Step 6: Final answer
    x = 251,953.20

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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.