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Finding the Fourth Proportional to 75,273, 103,892.94 and 45,065.06

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Solution

The fourth proportional to 75,273, 103,892.94 and 45,065.06 is: 62,199.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,273 : 103,892.94 = 45,065.06 : x
  2. Step 2: Convert to fraction form
    75,273/103,892.94 = 45,065.06/x
  3. Step 3: Cross multiply
    75,273x = 103,892.94 × 45,065.06
  4. Step 4: Simplify right side
    75,273x = 4,681,941,574.68
  5. Step 5: Solve for x
    x = 4,681,941,574.68/75,273
  6. Step 6: Final answer
    x = 62,199.48

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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.