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Finding the Fourth Proportional to 74,775.75, 103,186.88 and 44,560.40

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Solution

The fourth proportional to 74,775.75, 103,186.88 and 44,560.40 is: 61,491.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,775.75 : 103,186.88 = 44,560.40 : x
  2. Step 2: Convert to fraction form
    74,775.75/103,186.88 = 44,560.40/x
  3. Step 3: Cross multiply
    74,775.75x = 103,186.88 × 44,560.40
  4. Step 4: Simplify right side
    74,775.75x = 4,598,047,908.82
  5. Step 5: Solve for x
    x = 4,598,047,908.82/74,775.75
  6. Step 6: Final answer
    x = 61,491.16

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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.