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Finding the Fourth Proportional to 106,968.40, 160,567.80 and 60,312.40

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Solution

The fourth proportional to 106,968.40, 160,567.80 and 60,312.40 is: 90,533.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,968.40 : 160,567.80 = 60,312.40 : x
  2. Step 2: Convert to fraction form
    106,968.40/160,567.80 = 60,312.40/x
  3. Step 3: Cross multiply
    106,968.40x = 160,567.80 × 60,312.40
  4. Step 4: Simplify right side
    106,968.40x = 9,684,229,380.72
  5. Step 5: Solve for x
    x = 9,684,229,380.72/106,968.40
  6. Step 6: Final answer
    x = 90,533.55

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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.