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Finding the Fourth Proportional to 75,465.74, 112,905.93 and 54,454.16

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Solution

The fourth proportional to 75,465.74, 112,905.93 and 54,454.16 is: 81,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,465.74 : 112,905.93 = 54,454.16 : x
  2. Step 2: Convert to fraction form
    75,465.74/112,905.93 = 54,454.16/x
  3. Step 3: Cross multiply
    75,465.74x = 112,905.93 × 54,454.16
  4. Step 4: Simplify right side
    75,465.74x = 6,148,197,577.17
  5. Step 5: Solve for x
    x = 6,148,197,577.17/75,465.74
  6. Step 6: Final answer
    x = 81,470.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.