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Finding the Fourth Proportional to 144,528.90, 216,793.35 and 74,544.90

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Solution

The fourth proportional to 144,528.90, 216,793.35 and 74,544.90 is: 111,817.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,528.90 : 216,793.35 = 74,544.90 : x
  2. Step 2: Convert to fraction form
    144,528.90/216,793.35 = 74,544.90/x
  3. Step 3: Cross multiply
    144,528.90x = 216,793.35 × 74,544.90
  4. Step 4: Simplify right side
    144,528.90x = 16,160,838,596.42
  5. Step 5: Solve for x
    x = 16,160,838,596.42/144,528.90
  6. Step 6: Final answer
    x = 111,817.35

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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.