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Finding the Fourth Proportional to 243,122.40, 364,510.80 and 93,304.80

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Solution

The fourth proportional to 243,122.40, 364,510.80 and 93,304.80 is: 139,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,122.40 : 364,510.80 = 93,304.80 : x
  2. Step 2: Convert to fraction form
    243,122.40/364,510.80 = 93,304.80/x
  3. Step 3: Cross multiply
    243,122.40x = 364,510.80 × 93,304.80
  4. Step 4: Simplify right side
    243,122.40x = 34,010,607,291.84
  5. Step 5: Solve for x
    x = 34,010,607,291.84/243,122.40
  6. Step 6: Final answer
    x = 139,890.88

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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.