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Finding the Fourth Proportional to 74,435.63, 102,721.16 and 40,901.63

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Solution

The fourth proportional to 74,435.63, 102,721.16 and 40,901.63 is: 56,444.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,435.63 : 102,721.16 = 40,901.63 : x
  2. Step 2: Convert to fraction form
    74,435.63/102,721.16 = 40,901.63/x
  3. Step 3: Cross multiply
    74,435.63x = 102,721.16 × 40,901.63
  4. Step 4: Simplify right side
    74,435.63x = 4,201,462,468.14
  5. Step 5: Solve for x
    x = 4,201,462,468.14/74,435.63
  6. Step 6: Final answer
    x = 56,444.24

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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.