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Finding the Fourth Proportional to 109,230.40, 153,233.60 and 109,230.40

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Solution

The fourth proportional to 109,230.40, 153,233.60 and 109,230.40 is: 153,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,230.40 : 153,233.60 = 109,230.40 : x
  2. Step 2: Convert to fraction form
    109,230.40/153,233.60 = 109,230.40/x
  3. Step 3: Cross multiply
    109,230.40x = 153,233.60 × 109,230.40
  4. Step 4: Simplify right side
    109,230.40x = 16,737,767,421.44
  5. Step 5: Solve for x
    x = 16,737,767,421.44/109,230.40
  6. Step 6: Final answer
    x = 153,233.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.