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Finding the Fourth Proportional to 122,298.70, 183,480.45 and 43,404.70

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Solution

The fourth proportional to 122,298.70, 183,480.45 and 43,404.70 is: 65,118.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,298.70 : 183,480.45 = 43,404.70 : x
  2. Step 2: Convert to fraction form
    122,298.70/183,480.45 = 43,404.70/x
  3. Step 3: Cross multiply
    122,298.70x = 183,480.45 × 43,404.70
  4. Step 4: Simplify right side
    122,298.70x = 7,963,913,888.12
  5. Step 5: Solve for x
    x = 7,963,913,888.12/122,298.70
  6. Step 6: Final answer
    x = 65,118.55

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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.