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Finding the Fourth Proportional to 74,585.70, 111,878.55 and 44,988.30

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Solution

The fourth proportional to 74,585.70, 111,878.55 and 44,988.30 is: 67,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,585.70 : 111,878.55 = 44,988.30 : x
  2. Step 2: Convert to fraction form
    74,585.70/111,878.55 = 44,988.30/x
  3. Step 3: Cross multiply
    74,585.70x = 111,878.55 × 44,988.30
  4. Step 4: Simplify right side
    74,585.70x = 5,033,225,770.97
  5. Step 5: Solve for x
    x = 5,033,225,770.97/74,585.70
  6. Step 6: Final answer
    x = 67,482.45

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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.