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Finding the Fourth Proportional to 75,403.68, 104,075.68 and 43,590.92

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Solution

The fourth proportional to 75,403.68, 104,075.68 and 43,590.92 is: 60,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,403.68 : 104,075.68 = 43,590.92 : x
  2. Step 2: Convert to fraction form
    75,403.68/104,075.68 = 43,590.92/x
  3. Step 3: Cross multiply
    75,403.68x = 104,075.68 × 43,590.92
  4. Step 4: Simplify right side
    75,403.68x = 4,536,754,640.83
  5. Step 5: Solve for x
    x = 4,536,754,640.83/75,403.68
  6. Step 6: Final answer
    x = 60,166.22

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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.