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Finding the Fourth Proportional to 114,438.30, 171,657.45 and 79,008.90

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Solution

The fourth proportional to 114,438.30, 171,657.45 and 79,008.90 is: 118,513.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,438.30 : 171,657.45 = 79,008.90 : x
  2. Step 2: Convert to fraction form
    114,438.30/171,657.45 = 79,008.90/x
  3. Step 3: Cross multiply
    114,438.30x = 171,657.45 × 79,008.90
  4. Step 4: Simplify right side
    114,438.30x = 13,562,466,301.31
  5. Step 5: Solve for x
    x = 13,562,466,301.31/114,438.30
  6. Step 6: Final answer
    x = 118,513.35

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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.