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Finding the Fourth Proportional to 72,075.60, 99,473.16 and 41,854.32

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Solution

The fourth proportional to 72,075.60, 99,473.16 and 41,854.32 is: 57,764.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,075.60 : 99,473.16 = 41,854.32 : x
  2. Step 2: Convert to fraction form
    72,075.60/99,473.16 = 41,854.32/x
  3. Step 3: Cross multiply
    72,075.60x = 99,473.16 × 41,854.32
  4. Step 4: Simplify right side
    72,075.60x = 4,163,381,470.05
  5. Step 5: Solve for x
    x = 4,163,381,470.05/72,075.60
  6. Step 6: Final answer
    x = 57,764.09

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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.