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Finding the Fourth Proportional to 78,870.80, 118,306.20 and 23,466.80

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Solution

The fourth proportional to 78,870.80, 118,306.20 and 23,466.80 is: 35,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,870.80 : 118,306.20 = 23,466.80 : x
  2. Step 2: Convert to fraction form
    78,870.80/118,306.20 = 23,466.80/x
  3. Step 3: Cross multiply
    78,870.80x = 118,306.20 × 23,466.80
  4. Step 4: Simplify right side
    78,870.80x = 2,776,267,934.16
  5. Step 5: Solve for x
    x = 2,776,267,934.16/78,870.80
  6. Step 6: Final answer
    x = 35,200.20

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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.