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Finding the Fourth Proportional to 249,924.96, 374,798.88 and 81,399.60

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Solution

The fourth proportional to 249,924.96, 374,798.88 and 81,399.60 is: 122,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,924.96 : 374,798.88 = 81,399.60 : x
  2. Step 2: Convert to fraction form
    249,924.96/374,798.88 = 81,399.60/x
  3. Step 3: Cross multiply
    249,924.96x = 374,798.88 × 81,399.60
  4. Step 4: Simplify right side
    249,924.96x = 30,508,478,912.45
  5. Step 5: Solve for x
    x = 30,508,478,912.45/249,924.96
  6. Step 6: Final answer
    x = 122,070.56

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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.