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Finding the Fourth Proportional to 249,133.75, 373,708.98 and 80,655.48

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Solution

The fourth proportional to 249,133.75, 373,708.98 and 80,655.48 is: 120,985.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,133.75 : 373,708.98 = 80,655.48 : x
  2. Step 2: Convert to fraction form
    249,133.75/373,708.98 = 80,655.48/x
  3. Step 3: Cross multiply
    249,133.75x = 373,708.98 × 80,655.48
  4. Step 4: Simplify right side
    249,133.75x = 30,141,677,162.21
  5. Step 5: Solve for x
    x = 30,141,677,162.21/249,133.75
  6. Step 6: Final answer
    x = 120,985.93

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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.