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Finding the Fourth Proportional to 249,329.80, 373,985.10 and 83,117.80

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Solution

The fourth proportional to 249,329.80, 373,985.10 and 83,117.80 is: 124,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,329.80 : 373,985.10 = 83,117.80 : x
  2. Step 2: Convert to fraction form
    249,329.80/373,985.10 = 83,117.80/x
  3. Step 3: Cross multiply
    249,329.80x = 373,985.10 × 83,117.80
  4. Step 4: Simplify right side
    249,329.80x = 31,084,818,744.78
  5. Step 5: Solve for x
    x = 31,084,818,744.78/249,329.80
  6. Step 6: Final answer
    x = 124,673.50

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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.