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Finding the Fourth Proportional to 249,655.71, 374,499.33 and 105,534.66

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Solution

The fourth proportional to 249,655.71, 374,499.33 and 105,534.66 is: 158,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,655.71 : 374,499.33 = 105,534.66 : x
  2. Step 2: Convert to fraction form
    249,655.71/374,499.33 = 105,534.66/x
  3. Step 3: Cross multiply
    249,655.71x = 374,499.33 × 105,534.66
  4. Step 4: Simplify right side
    249,655.71x = 39,522,659,461.78
  5. Step 5: Solve for x
    x = 39,522,659,461.78/249,655.71
  6. Step 6: Final answer
    x = 158,308.65

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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.