Home / 199,421.07-299,066.88-66,265.59

Finding the Fourth Proportional to 199,421.07, 299,066.88 and 66,265.59

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Solution

The fourth proportional to 199,421.07, 299,066.88 and 66,265.59 is: 99,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,421.07 : 299,066.88 = 66,265.59 : x
  2. Step 2: Convert to fraction form
    199,421.07/299,066.88 = 66,265.59/x
  3. Step 3: Cross multiply
    199,421.07x = 299,066.88 × 66,265.59
  4. Step 4: Simplify right side
    199,421.07x = 19,817,843,252.66
  5. Step 5: Solve for x
    x = 19,817,843,252.66/199,421.07
  6. Step 6: Final answer
    x = 99,376.88

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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.