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Finding the Fourth Proportional to 249,328.80, 373,983.60 and 83,116.80

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Solution

The fourth proportional to 249,328.80, 373,983.60 and 83,116.80 is: 124,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,328.80 : 373,983.60 = 83,116.80 : x
  2. Step 2: Convert to fraction form
    249,328.80/373,983.60 = 83,116.80/x
  3. Step 3: Cross multiply
    249,328.80x = 373,983.60 × 83,116.80
  4. Step 4: Simplify right side
    249,328.80x = 31,084,320,084.48
  5. Step 5: Solve for x
    x = 31,084,320,084.48/249,328.80
  6. Step 6: Final answer
    x = 124,672.00

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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.