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Finding the Fourth Proportional to 243,133.40, 364,527.30 and 93,315.80

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Solution

The fourth proportional to 243,133.40, 364,527.30 and 93,315.80 is: 139,907.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,133.40 : 364,527.30 = 93,315.80 : x
  2. Step 2: Convert to fraction form
    243,133.40/364,527.30 = 93,315.80/x
  3. Step 3: Cross multiply
    243,133.40x = 364,527.30 × 93,315.80
  4. Step 4: Simplify right side
    243,133.40x = 34,016,156,621.34
  5. Step 5: Solve for x
    x = 34,016,156,621.34/243,133.40
  6. Step 6: Final answer
    x = 139,907.38

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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.