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Finding the Fourth Proportional to 122,429.60, 183,644.40 and 101,693.60

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Solution

The fourth proportional to 122,429.60, 183,644.40 and 101,693.60 is: 152,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,429.60 : 183,644.40 = 101,693.60 : x
  2. Step 2: Convert to fraction form
    122,429.60/183,644.40 = 101,693.60/x
  3. Step 3: Cross multiply
    122,429.60x = 183,644.40 × 101,693.60
  4. Step 4: Simplify right side
    122,429.60x = 18,675,460,155.84
  5. Step 5: Solve for x
    x = 18,675,460,155.84/122,429.60
  6. Step 6: Final answer
    x = 152,540.40

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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.