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Finding the Fourth Proportional to 75,348.51, 103,980.51 and 41,356.14

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Solution

The fourth proportional to 75,348.51, 103,980.51 and 41,356.14 is: 57,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,348.51 : 103,980.51 = 41,356.14 : x
  2. Step 2: Convert to fraction form
    75,348.51/103,980.51 = 41,356.14/x
  3. Step 3: Cross multiply
    75,348.51x = 103,980.51 × 41,356.14
  4. Step 4: Simplify right side
    75,348.51x = 4,300,232,528.83
  5. Step 5: Solve for x
    x = 4,300,232,528.83/75,348.51
  6. Step 6: Final answer
    x = 57,071.24

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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.