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Finding the Fourth Proportional to 109,233.40, 153,237.80 and 109,233.40

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Solution

The fourth proportional to 109,233.40, 153,237.80 and 109,233.40 is: 153,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,233.40 : 153,237.80 = 109,233.40 : x
  2. Step 2: Convert to fraction form
    109,233.40/153,237.80 = 109,233.40/x
  3. Step 3: Cross multiply
    109,233.40x = 153,237.80 × 109,233.40
  4. Step 4: Simplify right side
    109,233.40x = 16,738,685,902.52
  5. Step 5: Solve for x
    x = 16,738,685,902.52/109,233.40
  6. Step 6: Final answer
    x = 153,237.80

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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.