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Finding the Fourth Proportional to 73,218.60, 101,036.16 and 49,377.60

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Solution

The fourth proportional to 73,218.60, 101,036.16 and 49,377.60 is: 68,137.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,218.60 : 101,036.16 = 49,377.60 : x
  2. Step 2: Convert to fraction form
    73,218.60/101,036.16 = 49,377.60/x
  3. Step 3: Cross multiply
    73,218.60x = 101,036.16 × 49,377.60
  4. Step 4: Simplify right side
    73,218.60x = 4,988,923,094.02
  5. Step 5: Solve for x
    x = 4,988,923,094.02/73,218.60
  6. Step 6: Final answer
    x = 68,137.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.