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Finding the Fourth Proportional to 75,412.80, 112,924.80 and 59,860.80

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Solution

The fourth proportional to 75,412.80, 112,924.80 and 59,860.80 is: 89,636.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,412.80 : 112,924.80 = 59,860.80 : x
  2. Step 2: Convert to fraction form
    75,412.80/112,924.80 = 59,860.80/x
  3. Step 3: Cross multiply
    75,412.80x = 112,924.80 × 59,860.80
  4. Step 4: Simplify right side
    75,412.80x = 6,759,768,867.84
  5. Step 5: Solve for x
    x = 6,759,768,867.84/75,412.80
  6. Step 6: Final answer
    x = 89,636.89

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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.