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Finding the Fourth Proportional to 78,016.80, 116,830.80 and 62,464.80

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Solution

The fourth proportional to 78,016.80, 116,830.80 and 62,464.80 is: 93,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,016.80 : 116,830.80 = 62,464.80 : x
  2. Step 2: Convert to fraction form
    78,016.80/116,830.80 = 62,464.80/x
  3. Step 3: Cross multiply
    78,016.80x = 116,830.80 × 62,464.80
  4. Step 4: Simplify right side
    78,016.80x = 7,297,812,555.84
  5. Step 5: Solve for x
    x = 7,297,812,555.84/78,016.80
  6. Step 6: Final answer
    x = 93,541.55

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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.