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Finding the Fourth Proportional to 228,567.65, 342,941.72 and 70,808.40

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Solution

The fourth proportional to 228,567.65, 342,941.72 and 70,808.40 is: 106,240.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,567.65 : 342,941.72 = 70,808.40 : x
  2. Step 2: Convert to fraction form
    228,567.65/342,941.72 = 70,808.40/x
  3. Step 3: Cross multiply
    228,567.65x = 342,941.72 × 70,808.40
  4. Step 4: Simplify right side
    228,567.65x = 24,283,154,132.41
  5. Step 5: Solve for x
    x = 24,283,154,132.41/228,567.65
  6. Step 6: Final answer
    x = 106,240.56

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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.